162164891 has 8 divisors (see below), whose sum is σ = 187242720. Its totient is φ = 137564928.

The previous prime is 162164869. The next prime is 162164917. The reversal of 162164891 is 198461261.

162164891 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-162164891 is a prime.

It is not an unprimeable number, because it can be changed into a prime (162164851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118736 + ... + 120093.

It is an arithmetic number, because the mean of its divisors is an integer number (23405340).

Almost surely, 2^162164891 is an apocalyptic number.

162164891 is a deficient number, since it is larger than the sum of its proper divisors (25077829).

162164891 is an equidigital number, since it uses as much as digits as its factorization.

162164891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238933.

The product of its digits is 20736, while the sum is 38.

The square root of 162164891 is about 12734.3979441511. The cubic root of 162164891 is about 545.3210699676.

The spelling of 162164891 in words is "one hundred sixty-two million, one hundred sixty-four thousand, eight hundred ninety-one".