12501651 has 8 divisors (see below), whose sum is σ = 16841104. Its totient is φ = 8248320.

The previous prime is 12501641. The next prime is 12501659. The reversal of 12501651 is 15610521.

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

It is not a de Polignac number, because 12501651 - 2¹⁴ = 12485267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12501659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21190 + ... + 21771.

It is an arithmetic number, because the mean of its divisors is an integer number (2105138).

Almost surely, 2^12501651 is an apocalyptic number.

12501651 is a deficient number, since it is larger than the sum of its proper divisors (4339453).

12501651 is an equidigital number, since it uses as much as digits as its factorization.

12501651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43061.

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 12501651 is about 3535.7673848827. The cubic root of 12501651 is about 232.0896589150.

The spelling of 12501651 in words is "twelve million, five hundred one thousand, six hundred fifty-one".