1157865036 has 48 divisors (see below), whose sum is σ = 2867205600. Its totient is φ = 362414080.

The previous prime is 1157865017. The next prime is 1157865061. The reversal of 1157865036 is 6305687511.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 85276 + ... + 97916.

It is an arithmetic number, because the mean of its divisors is an integer number (59733450).

Almost surely, 2^1157865036 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1157865036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1433602800).

1157865036 is an abundant number, since it is smaller than the sum of its proper divisors (1709340564).

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

1157865036 is a wasteful number, since it uses less digits than its factorization.

1157865036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13114 (or 13112 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 42.

The square root of 1157865036 is about 34027.4159465570. The cubic root of 1157865036 is about 1050.0725682271.

The spelling of 1157865036 in words is "one billion, one hundred fifty-seven million, eight hundred sixty-five thousand, thirty-six".