162983138 has 4 divisors (see below), whose sum is σ = 244474710. Its totient is φ = 81491568.

The previous prime is 162983137. The next prime is 162983141. The reversal of 162983138 is 831389261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 831389261 = 157 ⋅5295473.

It can be written as a sum of positive squares in only one way, i.e., 142253329 + 20729809 = 11927^2 + 4553^2 .

It is a junction number, because it is equal to n+sod(n) for n = 162983095 and 162983104.

It is not an unprimeable number, because it can be changed into a prime (162983137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40745783 + ... + 40745786.

Almost surely, 2^162983138 is an apocalyptic number.

162983138 is a deficient number, since it is larger than the sum of its proper divisors (81491572).

162983138 is an equidigital number, since it uses as much as digits as its factorization.

162983138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81491571.

The product of its digits is 62208, while the sum is 41.

The square root of 162983138 is about 12766.4849508391. The cubic root of 162983138 is about 546.2367201571.

The spelling of 162983138 in words is "one hundred sixty-two million, nine hundred eighty-three thousand, one hundred thirty-eight".