1151015250 has 256 divisors, whose sum is σ = 3773952000. Its totient is φ = 226368000.

The previous prime is 1151015233. The next prime is 1151015251. The reversal of 1151015250 is 525101511.

It is a super-2 number, since 2×1151015250² = 2649672211465125000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (1151015251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1096726 + ... + 1097774.

It is an arithmetic number, because the mean of its divisors is an integer number (14742000).

Almost surely, 2^1151015250 is an apocalyptic number.

1151015250 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 1151015250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1886976000).

1151015250 is an abundant number, since it is smaller than the sum of its proper divisors (2622936750).

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

1151015250 is a wasteful number, since it uses less digits than its factorization.

1151015250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1106 (or 1096 counting only the distinct ones).

The product of its (nonzero) digits is 250, while the sum is 21.

The square root of 1151015250 is about 33926.6156579167. The cubic root of 1151015250 is about 1047.9977717112.

Adding to 1151015250 its reverse (525101511), we get a palindrome (1676116761).

The spelling of 1151015250 in words is "one billion, one hundred fifty-one million, fifteen thousand, two hundred fifty".