157805836 has 24 divisors (see below), whose sum is σ = 278723984. Its totient is φ = 78174720.

The previous prime is 157805831. The next prime is 157805839. The reversal of 157805836 is 638508751.

It is a junction number, because it is equal to n+sod(n) for n = 157805792 and 157805801.

It is not an unprimeable number, because it can be changed into a prime (157805831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 301471 + ... + 301993.

Almost surely, 2^157805836 is an apocalyptic number.

It is an amenable number.

157805836 is a deficient number, since it is larger than the sum of its proper divisors (120918148).

157805836 is a wasteful number, since it uses less digits than its factorization.

157805836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081 (or 1079 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 43.

The square root of 157805836 is about 12562.0792864876. The cubic root of 157805836 is about 540.3904766071.

The spelling of 157805836 in words is "one hundred fifty-seven million, eight hundred five thousand, eight hundred thirty-six".