158972210 has 8 divisors (see below), whose sum is σ = 286149996. Its totient is φ = 63588880.

The previous prime is 158972207. The next prime is 158972237. The reversal of 158972210 is 12279851.

It can be written as a sum of positive squares in 2 ways, for example, as 145274809 + 13697401 = 12053^2 + 3701^2 .

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

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, 7948601 + ... + 7948620.

Almost surely, 2^158972210 is an apocalyptic number.

158972210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

158972210 is a deficient number, since it is larger than the sum of its proper divisors (127177786).

158972210 is a wasteful number, since it uses less digits than its factorization.

158972210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15897228.

The product of its (nonzero) digits is 10080, while the sum is 35.

The square root of 158972210 is about 12608.4182195865. The cubic root of 158972210 is about 541.7185873176.

The spelling of 158972210 in words is "one hundred fifty-eight million, nine hundred seventy-two thousand, two hundred ten".