65002131 has 12 divisors (see below), whose sum is σ = 94308552. Its totient is φ = 43142496.

The previous prime is 65002123. The next prime is 65002139. The reversal of 65002131 is 13120056.

65002131 is a `hidden beast` number, since 650 + 0 + 2 + 13 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (65002123) and next prime (65002139).

It is not a de Polignac number, because 65002131 - 2³ = 65002123 is a prime.

It is a super-2 number, since 2×65002131² = 8450554069082322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (65002139) 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, 13866 + ... + 17951.

It is an arithmetic number, because the mean of its divisors is an integer number (7859046).

Almost surely, 2^65002131 is an apocalyptic number.

65002131 is a deficient number, since it is larger than the sum of its proper divisors (29306421).

65002131 is a wasteful number, since it uses less digits than its factorization.

65002131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32050 (or 32047 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 65002131 is about 8062.3899062251. The cubic root of 65002131 is about 402.0769697425.

Adding to 65002131 its reverse (13120056), we get a palindrome (78122187).

The spelling of 65002131 in words is "sixty-five million, two thousand, one hundred thirty-one".