157156211 has 4 divisors (see below), whose sum is σ = 166400712. Its totient is φ = 147911712.

The previous prime is 157156189. The next prime is 157156253. The reversal of 157156211 is 112651751.

157156211 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 an emirpimes, since its reverse is a distinct semiprime: 112651751 = 367 ⋅306953.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-157156211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157156261) 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, 4622225 + ... + 4622258.

It is an arithmetic number, because the mean of its divisors is an integer number (41600178).

Almost surely, 2^157156211 is an apocalyptic number.

157156211 is a deficient number, since it is larger than the sum of its proper divisors (9244501).

157156211 is an equidigital number, since it uses as much as digits as its factorization.

157156211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9244500.

The product of its digits is 2100, while the sum is 29.

The square root of 157156211 is about 12536.1960338852. The cubic root of 157156211 is about 539.6479312308.

The spelling of 157156211 in words is "one hundred fifty-seven million, one hundred fifty-six thousand, two hundred eleven".