158628171 has 32 divisors (see below), whose sum is σ = 240468480. Its totient is φ = 92277504.

The previous prime is 158628163. The next prime is 158628181. The reversal of 158628171 is 171826851.

It is not a de Polignac number, because 158628171 - 2³ = 158628163 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (158628101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78840 + ... + 80826.

It is an arithmetic number, because the mean of its divisors is an integer number (7514640).

Almost surely, 2^158628171 is an apocalyptic number.

158628171 is a deficient number, since it is larger than the sum of its proper divisors (81840309).

158628171 is a wasteful number, since it uses less digits than its factorization.

158628171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2115.

The product of its digits is 26880, while the sum is 39.

The square root of 158628171 is about 12594.7676040489. The cubic root of 158628171 is about 541.3275191165.

The spelling of 158628171 in words is "one hundred fifty-eight million, six hundred twenty-eight thousand, one hundred seventy-one".