162868391 has 16 divisors (see below), whose sum is σ = 193171968. Its totient is φ = 134416800.

The previous prime is 162868373. The next prime is 162868421. The reversal of 162868391 is 193868261.

It is not a de Polignac number, because 162868391 - 2¹⁴ = 162852007 is a prime.

It is a super-2 number, since 2×162868391² = 53052225573857762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162868091) 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, 17561 + ... + 25181.

It is an arithmetic number, because the mean of its divisors is an integer number (12073248).

Almost surely, 2^162868391 is an apocalyptic number.

162868391 is a deficient number, since it is larger than the sum of its proper divisors (30303577).

162868391 is an equidigital number, since it uses as much as digits as its factorization.

162868391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7742.

The product of its digits is 124416, while the sum is 44.

The square root of 162868391 is about 12761.9900877567. The cubic root of 162868391 is about 546.1084988351.

The spelling of 162868391 in words is "one hundred sixty-two million, eight hundred sixty-eight thousand, three hundred ninety-one".