64130236 has 12 divisors (see below), whose sum is σ = 113277528. Its totient is φ = 31765232.

The previous prime is 64130207. The next prime is 64130237. The reversal of 64130236 is 63203146.

It is a super-2 number, since 2×64130236² = 8225374338831392, 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 64130236.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64130237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74491 + ... + 75346.

It is an arithmetic number, because the mean of its divisors is an integer number (9439794).

Almost surely, 2^64130236 is an apocalyptic number.

It is an amenable number.

64130236 is a deficient number, since it is larger than the sum of its proper divisors (49147292).

64130236 is a wasteful number, since it uses less digits than its factorization.

64130236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149948 (or 149946 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 64130236 is about 8008.1356132373. The cubic root of 64130236 is about 400.2711411646.

The spelling of 64130236 in words is "sixty-four million, one hundred thirty thousand, two hundred thirty-six".