162397919 has 4 divisors (see below), whose sum is σ = 162493896. Its totient is φ = 162301944.

The previous prime is 162397897. The next prime is 162397927. The reversal of 162397919 is 919793261.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-162397919 is a prime.

It is a super-2 number, since 2×162397919² = 52746168191061122, 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 (162397019) 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, 45404 + ... + 48849.

It is an arithmetic number, because the mean of its divisors is an integer number (40623474).

Almost surely, 2^162397919 is an apocalyptic number.

162397919 is a deficient number, since it is larger than the sum of its proper divisors (95977).

162397919 is an equidigital number, since it uses as much as digits as its factorization.

162397919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95976.

The product of its digits is 183708, while the sum is 47.

The square root of 162397919 is about 12743.5442087357. The cubic root of 162397919 is about 545.5821504392.

The spelling of 162397919 in words is "one hundred sixty-two million, three hundred ninety-seven thousand, nine hundred nineteen".