158170 has 8 divisors (see below), whose sum is σ = 284724. Its totient is φ = 63264.

The previous prime is 158161. The next prime is 158189. The reversal of 158170 is 71851.

It can be written as a sum of positive squares in 2 ways, for example, as 154449 + 3721 = 393^2 + 61^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7899 + ... + 7918.

2¹⁵⁸¹⁷⁰ is an apocalyptic number.

158170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

158170 is a deficient number, since it is larger than the sum of its proper divisors (126554).

158170 is a wasteful number, since it uses less digits than its factorization.

158170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15824.

The product of its (nonzero) digits is 280, while the sum is 22.

The square root of 158170 is about 397.7059215048. The cubic root of 158170 is about 54.0805838464.

The spelling of 158170 in words is "one hundred fifty-eight thousand, one hundred seventy".