12520964 has 6 divisors (see below), whose sum is σ = 21911694. Its totient is φ = 6260480.

The previous prime is 12520957. The next prime is 12520967. The reversal of 12520964 is 46902521.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 9486400 + 3034564 = 3080^2 + 1742^2 .

It is not an unprimeable number, because it can be changed into a prime (12520967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1565117 + ... + 1565124.

It is an arithmetic number, because the mean of its divisors is an integer number (3651949).

Almost surely, 2^12520964 is an apocalyptic number.

It is an amenable number.

12520964 is a deficient number, since it is larger than the sum of its proper divisors (9390730).

12520964 is a wasteful number, since it uses less digits than its factorization.

12520964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3130245 (or 3130243 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 12520964 is about 3538.4974212227. The cubic root of 12520964 is about 232.2091109084.

The spelling of 12520964 in words is "twelve million, five hundred twenty thousand, nine hundred sixty-four".