65130988 has 24 divisors (see below), whose sum is σ = 123883760. Its totient is φ = 29782080.

The previous prime is 65130983. The next prime is 65131021. The reversal of 65130988 is 88903156.

It is a happy number.

It is a super-2 number, since 2×65130988² = 8484091195712288, 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 65130988.

It is not an unprimeable number, because it can be changed into a prime (65130983) 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, 78 + ... + 11413.

Almost surely, 2^65130988 is an apocalyptic number.

It is an amenable number.

65130988 is a deficient number, since it is larger than the sum of its proper divisors (58752772).

65130988 is a wasteful number, since it uses less digits than its factorization.

65130988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11617 (or 11615 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 65130988 is about 8070.3771906894. The cubic root of 65130988 is about 402.3424801879.

The spelling of 65130988 in words is "sixty-five million, one hundred thirty thousand, nine hundred eighty-eight".