158970 has 32 divisors (see below), whose sum is σ = 436608. Its totient is φ = 36288.

The previous prime is 158959. The next prime is 158981. The reversal of 158970 is 79851.

158970 = 36² + 37² + ... + 80².

It is an interprime number because it is at equal distance from previous prime (158959) and next prime (158981).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 169 + ... + 588.

It is an arithmetic number, because the mean of its divisors is an integer number (13644).

2¹⁵⁸⁹⁷⁰ is an apocalyptic number.

158970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

158970 is an abundant number, since it is smaller than the sum of its proper divisors (277638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

158970 is a wasteful number, since it uses less digits than its factorization.

158970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 774.

The product of its (nonzero) digits is 2520, while the sum is 30.

The square root of 158970 is about 398.7104212333. The cubic root of 158970 is about 54.1716077018.

It can be divided in two parts, 158 and 970, that added together give a triangular number (1128 = T₄₇).

The spelling of 158970 in words is "one hundred fifty-eight thousand, nine hundred seventy".