158813211 has 4 divisors (see below), whose sum is σ = 211750952. Its totient is φ = 105875472.

The previous prime is 158813197. The next prime is 158813261. The reversal of 158813211 is 112318851.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 158813211 - 2¹⁵ = 158780443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (158813261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26468866 + ... + 26468871.

It is an arithmetic number, because the mean of its divisors is an integer number (52937738).

Almost surely, 2^158813211 is an apocalyptic number.

158813211 is a deficient number, since it is larger than the sum of its proper divisors (52937741).

158813211 is an equidigital number, since it uses as much as digits as its factorization.

158813211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52937740.

The product of its digits is 1920, while the sum is 30.

The square root of 158813211 is about 12602.1113707188. Note that the first 3 decimals coincide. The cubic root of 158813211 is about 541.5379237803.

The spelling of 158813211 in words is "one hundred fifty-eight million, eight hundred thirteen thousand, two hundred eleven".