157085897 has 4 divisors (see below), whose sum is σ = 162153216. Its totient is φ = 152018580.

The previous prime is 157085893. The next prime is 157085911. The reversal of 157085897 is 798580751.

157085897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 798580751 = 277 ⋅2882963.

It is a cyclic number.

It is not a de Polignac number, because 157085897 - 2² = 157085893 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157085893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2533613 + ... + 2533674.

It is an arithmetic number, because the mean of its divisors is an integer number (40538304).

Almost surely, 2^157085897 is an apocalyptic number.

It is an amenable number.

157085897 is a deficient number, since it is larger than the sum of its proper divisors (5067319).

157085897 is an equidigital number, since it uses as much as digits as its factorization.

157085897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5067318.

The product of its (nonzero) digits is 705600, while the sum is 50.

The square root of 157085897 is about 12533.3912808944. The cubic root of 157085897 is about 539.5674370846.

The spelling of 157085897 in words is "one hundred fifty-seven million, eighty-five thousand, eight hundred ninety-seven".