12502621 has 8 divisors (see below), whose sum is σ = 12844664. Its totient is φ = 12165120.

The previous prime is 12502597. The next prime is 12502643. The reversal of 12502621 is 12620521.

It can be written as a sum of positive squares in 4 ways, for example, as 1179396 + 11323225 = 1086^2 + 3365^2 .

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 12502621 - 2⁷ = 12502493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12502661) 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, 4861 + ... + 6973.

It is an arithmetic number, because the mean of its divisors is an integer number (1605583).

Almost surely, 2^12502621 is an apocalyptic number.

It is an amenable number.

12502621 is a deficient number, since it is larger than the sum of its proper divisors (342043).

12502621 is an equidigital number, since it uses as much as digits as its factorization.

12502621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2271.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 12502621 is about 3535.9045518792. The cubic root of 12502621 is about 232.0956613528.

The spelling of 12502621 in words is "twelve million, five hundred two thousand, six hundred twenty-one".