65274138 has 24 divisors (see below), whose sum is σ = 147577248. Its totient is φ = 20811912.

The previous prime is 65274137. The next prime is 65274151. The reversal of 65274138 is 83147256.

It is not an unprimeable number, because it can be changed into a prime (65274133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78420 + ... + 79247.

It is an arithmetic number, because the mean of its divisors is an integer number (6149052).

Almost surely, 2^65274138 is an apocalyptic number.

65274138 is an abundant number, since it is smaller than the sum of its proper divisors (82303110).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65274138 is a wasteful number, since it uses less digits than its factorization.

65274138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157698 (or 157695 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 65274138 is about 8079.2411772394. The cubic root of 65274138 is about 402.6370311301.

The spelling of 65274138 in words is "sixty-five million, two hundred seventy-four thousand, one hundred thirty-eight".