158163215 has 16 divisors (see below), whose sum is σ = 220150272. Its totient is φ = 106834464.

The previous prime is 158163169. The next prime is 158163217. The reversal of 158163215 is 512361851.

158163215 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 158163215 - 2⁶ = 158163151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158163217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31379 + ... + 36068.

It is an arithmetic number, because the mean of its divisors is an integer number (13759392).

Almost surely, 2^158163215 is an apocalyptic number.

158163215 is a deficient number, since it is larger than the sum of its proper divisors (61987057).

158163215 is an equidigital number, since it uses as much as digits as its factorization.

158163215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67526.

The product of its digits is 7200, while the sum is 32.

The square root of 158163215 is about 12576.2957582907. The cubic root of 158163215 is about 540.7981053917.

The spelling of 158163215 in words is "one hundred fifty-eight million, one hundred sixty-three thousand, two hundred fifteen".