1155151530 has 256 divisors, whose sum is σ = 3570739200. Its totient is φ = 266499072.

The previous prime is 1155151523. The next prime is 1155151537. The reversal of 1155151530 is 351515511.

1155151530 is a `hidden beast` number, since 11 + 551 + 51 + 53 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (1155151523) and next prime (1155151537).

It is a super-2 number, since 2×1155151530² = 2668750114522681800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1155151494 and 1155151503.

It is not an unprimeable number, because it can be changed into a prime (1155151537) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 4833151 + ... + 4833389.

It is an arithmetic number, because the mean of its divisors is an integer number (13948200).

Almost surely, 2^1155151530 is an apocalyptic number.

1155151530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1155151530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1785369600).

1155151530 is an abundant number, since it is smaller than the sum of its proper divisors (2415587670).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1155151530 is a wasteful number, since it uses less digits than its factorization.

1155151530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297 (or 279 counting only the distinct ones).

The product of its (nonzero) digits is 1875, while the sum is 27.

The square root of 1155151530 is about 33987.5202096299. The cubic root of 1155151530 is about 1049.2516300038.

The spelling of 1155151530 in words is "one billion, one hundred fifty-five million, one hundred fifty-one thousand, five hundred thirty".