64651130 has 16 divisors (see below), whose sum is σ = 116756640. Its totient is φ = 25774992.

The previous prime is 64651117. The next prime is 64651133. The reversal of 64651130 is 3115646.

It is a super-2 number, since 2×64651130² = 8359537220553800, 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 64651130.

It is not an unprimeable number, because it can be changed into a prime (64651133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7460 + ... + 13599.

It is an arithmetic number, because the mean of its divisors is an integer number (7297290).

Almost surely, 2^64651130 is an apocalyptic number.

64651130 is a deficient number, since it is larger than the sum of its proper divisors (52105510).

64651130 is a wasteful number, since it uses less digits than its factorization.

64651130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21373.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 64651130 is about 8040.5926398494. The cubic root of 64651130 is about 401.3519462884.

Adding to 64651130 its reverse (3115646), we get a palindrome (67766776).

The spelling of 64651130 in words is "sixty-four million, six hundred fifty-one thousand, one hundred thirty".