12520651 has 8 divisors (see below), whose sum is σ = 14709744. Its totient is φ = 10506720.

The previous prime is 12520643. The next prime is 12520657. The reversal of 12520651 is 15602521.

12520651 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12520651 - 2³ = 12520643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12520657) 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, 43636 + ... + 43921.

It is an arithmetic number, because the mean of its divisors is an integer number (1838718).

Almost surely, 2^12520651 is an apocalyptic number.

12520651 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12520651 is a deficient number, since it is larger than the sum of its proper divisors (2189093).

12520651 is a wasteful number, since it uses less digits than its factorization.

12520651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87581.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 12520651 is about 3538.4531931340. The cubic root of 12520651 is about 232.2071759654.

The spelling of 12520651 in words is "twelve million, five hundred twenty thousand, six hundred fifty-one".