162279891 has 18 divisors (see below), whose sum is σ = 240929052. Its totient is φ = 105254640.

The previous prime is 162279863. The next prime is 162279959. The reversal of 162279891 is 198972261.

162279891 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 162279891 - 2⁶ = 162279827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (162279811) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5736 + ... + 18906.

Almost surely, 2^162279891 is an apocalyptic number.

162279891 is a deficient number, since it is larger than the sum of its proper divisors (78649161).

162279891 is a wasteful number, since it uses less digits than its factorization.

162279891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13251 (or 13211 counting only the distinct ones).

The product of its digits is 108864, while the sum is 45.

The square root of 162279891 is about 12738.9124732059. The cubic root of 162279891 is about 545.4499451809.

The spelling of 162279891 in words is "one hundred sixty-two million, two hundred seventy-nine thousand, eight hundred ninety-one".