157755771 has 18 divisors (see below), whose sum is σ = 230169212. Its totient is φ = 104119560.

The previous prime is 157755769. The next prime is 157755779. The reversal of 157755771 is 177557751.

157755771 is a `hidden beast` number, since 1 + 5 + 7 + 75 + 577 + 1 = 666.

It is not a de Polignac number, because 157755771 - 2¹ = 157755769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157755779) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 102276 + ... + 103806.

Almost surely, 2^157755771 is an apocalyptic number.

157755771 is a deficient number, since it is larger than the sum of its proper divisors (72413441).

157755771 is a wasteful number, since it uses less digits than its factorization.

157755771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1751 (or 1641 counting only the distinct ones).

The product of its digits is 300125, while the sum is 45.

The square root of 157755771 is about 12560.0864248619. The cubic root of 157755771 is about 540.3333230157. Note that the first 4 decimals are identical.

The spelling of 157755771 in words is "one hundred fifty-seven million, seven hundred fifty-five thousand, seven hundred seventy-one".