12971124 has 24 divisors (see below), whose sum is σ = 33629120. Its totient is φ = 4323672.

The previous prime is 12971117. The next prime is 12971137. The reversal of 12971124 is 42117921.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59944 + ... + 60159.

Almost surely, 2^12971124 is an apocalyptic number.

It is an amenable number.

12971124 is an abundant number, since it is smaller than the sum of its proper divisors (20657996).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12971124 is a wasteful number, since it uses less digits than its factorization.

12971124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120116 (or 120108 counting only the distinct ones).

The product of its digits is 1008, while the sum is 27.

The square root of 12971124 is about 3601.5446686110. The cubic root of 12971124 is about 234.9592444790.

It can be divided in two parts, 129 and 71124, that added together give a triangular number (71253 = T₃₇₇).

The spelling of 12971124 in words is "twelve million, nine hundred seventy-one thousand, one hundred twenty-four".