65371139 has 8 divisors (see below), whose sum is σ = 66183312. Its totient is φ = 64562400.

The previous prime is 65371109. The next prime is 65371147. The reversal of 65371139 is 93117356.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65371139 is a prime.

It is a cake number, because a cake can be divided into 65371139 parts by 732 planar cuts.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 65371099 and 65371108.

It is not an unprimeable number, because it can be changed into a prime (65371109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73592 + ... + 74474.

It is an arithmetic number, because the mean of its divisors is an integer number (8272914).

Almost surely, 2^65371139 is an apocalyptic number.

65371139 is a deficient number, since it is larger than the sum of its proper divisors (812173).

65371139 is a wasteful number, since it uses less digits than its factorization.

65371139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1717.

The product of its digits is 17010, while the sum is 35.

The square root of 65371139 is about 8085.2420495617. The cubic root of 65371139 is about 402.8363794236.

The spelling of 65371139 in words is "sixty-five million, three hundred seventy-one thousand, one hundred thirty-nine".