65015131 has 8 divisors (see below), whose sum is σ = 68939280. Its totient is φ = 61141248.

The previous prime is 65015117. The next prime is 65015143. The reversal of 65015131 is 13151056.

65015131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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-65015131 is a prime.

It is a super-2 number, since 2×65015131² = 8453934517894322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65015101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9886 + ... + 15091.

It is an arithmetic number, because the mean of its divisors is an integer number (8617410).

Almost surely, 2^65015131 is an apocalyptic number.

65015131 is a deficient number, since it is larger than the sum of its proper divisors (3924149).

65015131 is a wasteful number, since it uses less digits than its factorization.

65015131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25133.

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 65015131 is about 8063.1960784791. The cubic root of 65015131 is about 402.1037722083.

Adding to 65015131 its reverse (13151056), we get a palindrome (78166187).

The spelling of 65015131 in words is "sixty-five million, fifteen thousand, one hundred thirty-one".