157636043 has 12 divisors (see below), whose sum is σ = 166168560. Its totient is φ = 149256096.

The previous prime is 157636009. The next prime is 157636057. The reversal of 157636043 is 340636751.

It is not a de Polignac number, because 157636043 - 2²⁴ = 140858827 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 157635994 and 157636012.

It is not an unprimeable number, because it can be changed into a prime (157639043) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 688253 + ... + 688481.

It is an arithmetic number, because the mean of its divisors is an integer number (13847380).

Almost surely, 2^157636043 is an apocalyptic number.

157636043 is a deficient number, since it is larger than the sum of its proper divisors (8532517).

157636043 is an equidigital number, since it uses as much as digits as its factorization.

157636043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598 (or 425 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 35.

The square root of 157636043 is about 12555.3193109534. The cubic root of 157636043 is about 540.1965939423.

The spelling of 157636043 in words is "one hundred fifty-seven million, six hundred thirty-six thousand, forty-three".