65797131 has 8 divisors (see below), whose sum is σ = 88056720. Its totient is φ = 43701152.

The previous prime is 65797129. The next prime is 65797139. The reversal of 65797131 is 13179756.

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

It is a cyclic number.

It is not a de Polignac number, because 65797131 - 2¹ = 65797129 is a prime.

It is a super-2 number, since 2×65797131² = 8658524895662322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 65797131.

It is not an unprimeable number, because it can be changed into a prime (65797139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39960 + ... + 41573.

It is an arithmetic number, because the mean of its divisors is an integer number (11007090).

Almost surely, 2^65797131 is an apocalyptic number.

65797131 is a deficient number, since it is larger than the sum of its proper divisors (22259589).

65797131 is a wasteful number, since it uses less digits than its factorization.

65797131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81805.

The product of its digits is 39690, while the sum is 39.

The square root of 65797131 is about 8111.5430714507. The cubic root of 65797131 is about 403.7095153137.

The spelling of 65797131 in words is "sixty-five million, seven hundred ninety-seven thousand, one hundred thirty-one".