12881337 has 32 divisors (see below), whose sum is σ = 20742144. Its totient is φ = 6955200.

The previous prime is 12881329. The next prime is 12881347. The reversal of 12881337 is 73318821.

12881337 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 12881337 - 2³ = 12881329 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12881298 and 12881307.

It is not an unprimeable number, because it can be changed into a prime (12881347) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30387 + ... + 30807.

It is an arithmetic number, because the mean of its divisors is an integer number (648192).

Almost surely, 2^12881337 is an apocalyptic number.

It is an amenable number.

12881337 is a deficient number, since it is larger than the sum of its proper divisors (7860807).

12881337 is a wasteful number, since it uses less digits than its factorization.

12881337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509.

The product of its digits is 8064, while the sum is 33.

The square root of 12881337 is about 3589.0579543942. The cubic root of 12881337 is about 234.4158541405.

The spelling of 12881337 in words is "twelve million, eight hundred eighty-one thousand, three hundred thirty-seven".