12491974 has 32 divisors (see below), whose sum is σ = 21897216. Its totient is φ = 5281920.

The previous prime is 12491971. The next prime is 12492001. The reversal of 12491974 is 47919421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12491971) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47367 + ... + 47629.

It is an arithmetic number, because the mean of its divisors is an integer number (684288).

Almost surely, 2^12491974 is an apocalyptic number.

12491974 is a deficient number, since it is larger than the sum of its proper divisors (9405242).

12491974 is a wasteful number, since it uses less digits than its factorization.

12491974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420.

The product of its digits is 18144, while the sum is 37.

The square root of 12491974 is about 3534.3986758712. The cubic root of 12491974 is about 232.0297598566.

It can be divided in two parts, 1249 and 1974, that added together give a palindrome (3223).

The spelling of 12491974 in words is "twelve million, four hundred ninety-one thousand, nine hundred seventy-four".