12621495 has 16 divisors (see below), whose sum is σ = 20846592. Its totient is φ = 6514080.

The previous prime is 12621493. The next prime is 12621509. The reversal of 12621495 is 59412621.

12621495 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12621495 - 2¹ = 12621493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12621493) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13107 + ... + 14036.

It is an arithmetic number, because the mean of its divisors is an integer number (1302912).

Almost surely, 2^12621495 is an apocalyptic number.

12621495 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12621495 is a deficient number, since it is larger than the sum of its proper divisors (8225097).

12621495 is a wasteful number, since it uses less digits than its factorization.

12621495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27182.

The product of its digits is 4320, while the sum is 30.

The square root of 12621495 is about 3552.6743447718. The cubic root of 12621495 is about 232.8289251208.

The spelling of 12621495 in words is "twelve million, six hundred twenty-one thousand, four hundred ninety-five".