12901845 has 16 divisors (see below), whose sum is σ = 22519872. Its totient is φ = 6255360.

The previous prime is 12901831. The next prime is 12901853. The reversal of 12901845 is 54810921.

It is a happy number.

It is not a de Polignac number, because 12901845 - 2⁵ = 12901813 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38932 + ... + 39261.

It is an arithmetic number, because the mean of its divisors is an integer number (1407492).

Almost surely, 2^12901845 is an apocalyptic number.

12901845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12901845 is a deficient number, since it is larger than the sum of its proper divisors (9618027).

12901845 is a wasteful number, since it uses less digits than its factorization.

12901845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78212.

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 12901845 is about 3591.9138352694. The cubic root of 12901845 is about 234.5401903889.

The spelling of 12901845 in words is "twelve million, nine hundred one thousand, eight hundred forty-five".