1153315530 has 128 divisors (see below), whose sum is σ = 3344924160. Its totient is φ = 281594880.

The previous prime is 1153315487. The next prime is 1153315543. The reversal of 1153315530 is 355133511.

1153315530 is a `hidden beast` number, since 115 + 3 + 3 + 15 + 530 = 666.

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 = 1153315494 and 1153315503.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 166435 + ... + 173225.

It is an arithmetic number, because the mean of its divisors is an integer number (26132220).

Almost surely, 2^1153315530 is an apocalyptic number.

1153315530 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 1153315530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1672462080).

1153315530 is an abundant number, since it is smaller than the sum of its proper divisors (2191608630).

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

1153315530 is a wasteful number, since it uses less digits than its factorization.

1153315530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6861 (or 6855 counting only the distinct ones).

The product of its (nonzero) digits is 3375, while the sum is 27.

The square root of 1153315530 is about 33960.4995546296. The cubic root of 1153315530 is about 1048.6954410634.

The spelling of 1153315530 in words is "one billion, one hundred fifty-three million, three hundred fifteen thousand, five hundred thirty".