12881237 has 8 divisors (see below), whose sum is σ = 13164120. Its totient is φ = 12601600.

The previous prime is 12881207. The next prime is 12881251. The reversal of 12881237 is 73218821.

It can be written as a sum of positive squares in 4 ways, for example, as 5340721 + 7540516 = 2311^2 + 2746^2 .

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 12881237 - 2¹⁴ = 12864853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12881207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8273 + ... + 9705.

It is an arithmetic number, because the mean of its divisors is an integer number (1645515).

Almost surely, 2^12881237 is an apocalyptic number.

It is an amenable number.

12881237 is a deficient number, since it is larger than the sum of its proper divisors (282883).

12881237 is a wasteful number, since it uses less digits than its factorization.

12881237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1623.

The product of its digits is 5376, while the sum is 32.

The square root of 12881237 is about 3589.0440231349. The cubic root of 12881237 is about 234.4152475356.

The spelling of 12881237 in words is "twelve million, eight hundred eighty-one thousand, two hundred thirty-seven".