12937081 has 8 divisors (see below), whose sum is σ = 13664000. Its totient is φ = 12214800.

The previous prime is 12937069. The next prime is 12937139. The reversal of 12937081 is 18073921.

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 12937081 - 2¹⁵ = 12904313 is a prime.

It is a super-2 number, since 2×12937081² = 334736129601122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12937021) 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, 5656 + ... + 7606.

It is an arithmetic number, because the mean of its divisors is an integer number (1708000).

Almost surely, 2^12937081 is an apocalyptic number.

It is an amenable number.

12937081 is a deficient number, since it is larger than the sum of its proper divisors (726919).

12937081 is a wasteful number, since it uses less digits than its factorization.

12937081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2319.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 12937081 is about 3596.8153969866. The cubic root of 12937081 is about 234.7535124909.

The spelling of 12937081 in words is "twelve million, nine hundred thirty-seven thousand, eighty-one".