1157321610 has 48 divisors (see below), whose sum is σ = 3012650784. Its totient is φ = 308248416.

The previous prime is 1157321603. The next prime is 1157321617. The reversal of 1157321610 is 161237511.

1157321610 is a `hidden beast` number, since 1 + 15 + 7 + 32 + 1 + 610 = 666.

1157321610 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1157321603) and next prime (1157321617).

It is not an unprimeable number, because it can be changed into a prime (1157321617) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 72189 + ... + 86751.

It is an arithmetic number, because the mean of its divisors is an integer number (62763558).

Almost surely, 2^1157321610 is an apocalyptic number.

1157321610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1157321610 is an abundant number, since it is smaller than the sum of its proper divisors (1855329174).

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

1157321610 is a wasteful number, since it uses less digits than its factorization.

1157321610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15459 (or 15456 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 1157321610 is about 34019.4298894029. The cubic root of 1157321610 is about 1049.9082640943.

The spelling of 1157321610 in words is "one billion, one hundred fifty-seven million, three hundred twenty-one thousand, six hundred ten".