162972142 has 8 divisors (see below), whose sum is σ = 244512576. Its totient is φ = 81467952.

The previous prime is 162972133. The next prime is 162972143. The reversal of 162972142 is 241279261.

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

It is a junction number, because it is equal to n+sod(n) for n = 162972098 and 162972107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162972143) 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, 11658 + ... + 21490.

It is an arithmetic number, because the mean of its divisors is an integer number (30564072).

Almost surely, 2^162972142 is an apocalyptic number.

162972142 is a deficient number, since it is larger than the sum of its proper divisors (81540434).

162972142 is an equidigital number, since it uses as much as digits as its factorization.

162972142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18122.

The product of its digits is 12096, while the sum is 34.

The square root of 162972142 is about 12766.0542847036. The cubic root of 162972142 is about 546.2244355446.

The spelling of 162972142 in words is "one hundred sixty-two million, nine hundred seventy-two thousand, one hundred forty-two".