12501841 has 12 divisors (see below), whose sum is σ = 13828276. Its totient is φ = 11293920.

The previous prime is 12501833. The next prime is 12501847. The reversal of 12501841 is 14810521.

It can be written as a sum of positive squares in 2 ways, for example, as 4322241 + 8179600 = 2079^2 + 2860^2 .

It is not a de Polignac number, because 12501841 - 2³ = 12501833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12501847) 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 11 ways as a sum of consecutive naturals, for example, 33331 + ... + 33703.

Almost surely, 2^12501841 is an apocalyptic number.

12501841 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12501841 is a deficient number, since it is larger than the sum of its proper divisors (1326435).

12501841 is a wasteful number, since it uses less digits than its factorization.

12501841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672 (or 661 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 22.

The square root of 12501841 is about 3535.7942530639. The cubic root of 12501841 is about 232.0908346747.

The spelling of 12501841 in words is "twelve million, five hundred one thousand, eight hundred forty-one".