64139162 has 4 divisors (see below), whose sum is σ = 96208746. Its totient is φ = 32069580.

The previous prime is 64139149. The next prime is 64139177. The reversal of 64139162 is 26193146.

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

It can be written as a sum of positive squares in only one way, i.e., 63664441 + 474721 = 7979^2 + 689^2 .

It is a super-2 number, since 2×64139162² = 8227664204124488, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16034789 + ... + 16034792.

Almost surely, 2^64139162 is an apocalyptic number.

64139162 is a deficient number, since it is larger than the sum of its proper divisors (32069584).

64139162 is a wasteful number, since it uses less digits than its factorization.

64139162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32069583.

The product of its digits is 7776, while the sum is 32.

The square root of 64139162 is about 8008.6929020908. The cubic root of 64139162 is about 400.2897109516.

The spelling of 64139162 in words is "sixty-four million, one hundred thirty-nine thousand, one hundred sixty-two".