158857263 has 12 divisors (see below), whose sum is σ = 229823568. Its totient is φ = 105737280.

The previous prime is 158857261. The next prime is 158857267. The reversal of 158857263 is 362758851.

158857263 is a `hidden beast` number, since 1 + 588 + 5 + 7 + 2 + 63 = 666.

It is not a de Polignac number, because 158857263 - 2¹ = 158857261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158857261) 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, 7818 + ... + 19463.

It is an arithmetic number, because the mean of its divisors is an integer number (19151964).

Almost surely, 2^158857263 is an apocalyptic number.

158857263 is a deficient number, since it is larger than the sum of its proper divisors (70966305).

158857263 is a wasteful number, since it uses less digits than its factorization.

158857263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27934 (or 27931 counting only the distinct ones).

The product of its digits is 403200, while the sum is 45.

The square root of 158857263 is about 12603.8590518936. The cubic root of 158857263 is about 541.5879901929.

The spelling of 158857263 in words is "one hundred fifty-eight million, eight hundred fifty-seven thousand, two hundred sixty-three".