12501398 has 32 divisors (see below), whose sum is σ = 23284800. Its totient is φ = 4901760.

The previous prime is 12501371. The next prime is 12501413. The reversal of 12501398 is 89310521.

It is a self number, because there is not a number n which added to its sum of digits gives 12501398.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 26888 + ... + 27348.

It is an arithmetic number, because the mean of its divisors is an integer number (727650).

Almost surely, 2^12501398 is an apocalyptic number.

12501398 is a deficient number, since it is larger than the sum of its proper divisors (10783402).

12501398 is a wasteful number, since it uses less digits than its factorization.

12501398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 12501398 is about 3535.7316074612. The cubic root of 12501398 is about 232.0880932797.

The spelling of 12501398 in words is "twelve million, five hundred one thousand, three hundred ninety-eight".