12491037 has 32 divisors (see below), whose sum is σ = 20988800. Its totient is φ = 7278336.

The previous prime is 12491033. The next prime is 12491069. The reversal of 12491037 is 73019421.

It is not a de Polignac number, because 12491037 - 2² = 12491033 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12491037.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12491033) 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, 5733 + ... + 7605.

It is an arithmetic number, because the mean of its divisors is an integer number (655900).

Almost surely, 2^12491037 is an apocalyptic number.

It is an amenable number.

12491037 is a deficient number, since it is larger than the sum of its proper divisors (8497763).

12491037 is a wasteful number, since it uses less digits than its factorization.

12491037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1914 (or 1908 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 12491037 is about 3534.2661190125. The cubic root of 12491037 is about 232.0239583363.

The spelling of 12491037 in words is "twelve million, four hundred ninety-one thousand, thirty-seven".