65912130 has 40 divisors (see below), whose sum is σ = 177232572. Its totient is φ = 17576352.

The previous prime is 65912129. The next prime is 65912131. The reversal of 65912130 is 3121956.

65912130 is a `hidden beast` number, since 659 + 1 + 2 + 1 + 3 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (65912129) and next prime (65912131).

It can be written as a sum of positive squares in 2 ways, for example, as 64016001 + 1896129 = 8001^2 + 1377^2 .

It is a super-2 number, since 2×65912130² = 8688817762273800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 65912094 and 65912103.

It is not an unprimeable number, because it can be changed into a prime (65912131) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 39877 + ... + 41496.

Almost surely, 2^65912130 is an apocalyptic number.

65912130 is an abundant number, since it is smaller than the sum of its proper divisors (111320442).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65912130 is a wasteful number, since it uses less digits than its factorization.

65912130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81392 (or 81383 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 65912130 is about 8118.6285787687. The cubic root of 65912130 is about 403.9445770784.

The spelling of 65912130 in words is "sixty-five million, nine hundred twelve thousand, one hundred thirty".