157813892 has 6 divisors (see below), whose sum is σ = 276174318. Its totient is φ = 78906944.

The previous prime is 157813891. The next prime is 157813919. The reversal of 157813892 is 298318751.

It can be written as a sum of positive squares in only one way, i.e., 157151296 + 662596 = 12536^2 + 814^2 .

It is not an unprimeable number, because it can be changed into a prime (157813891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19726733 + ... + 19726740.

It is an arithmetic number, because the mean of its divisors is an integer number (46029053).

Almost surely, 2^157813892 is an apocalyptic number.

It is an amenable number.

157813892 is a deficient number, since it is larger than the sum of its proper divisors (118360426).

157813892 is a wasteful number, since it uses less digits than its factorization.

157813892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39453477 (or 39453475 counting only the distinct ones).

The product of its digits is 120960, while the sum is 44.

The square root of 157813892 is about 12562.3999299497. The cubic root of 157813892 is about 540.3996721090.

The spelling of 157813892 in words is "one hundred fifty-seven million, eight hundred thirteen thousand, eight hundred ninety-two".