157342761 has 12 divisors (see below), whose sum is σ = 227585280. Its totient is φ = 104751000.

The previous prime is 157342753. The next prime is 157342807. The reversal of 157342761 is 167243751.

It is a happy number.

157342761 is a `hidden beast` number, since 1 + 573 + 4 + 27 + 61 = 666.

It is not a de Polignac number, because 157342761 - 2³ = 157342753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (157342711) 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, 4881 + ... + 18398.

It is an arithmetic number, because the mean of its divisors is an integer number (18965440).

Almost surely, 2^157342761 is an apocalyptic number.

It is an amenable number.

157342761 is a deficient number, since it is larger than the sum of its proper divisors (70242519).

157342761 is a wasteful number, since it uses less digits than its factorization.

157342761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24036 (or 24033 counting only the distinct ones).

The product of its digits is 35280, while the sum is 36.

The square root of 157342761 is about 12543.6342819775. The cubic root of 157342761 is about 539.8613738807.

The spelling of 157342761 in words is "one hundred fifty-seven million, three hundred forty-two thousand, seven hundred sixty-one".