126972692 has 24 divisors (see below), whose sum is σ = 277032000. Its totient is φ = 49469760.

The previous prime is 126972691. The next prime is 126972697. The reversal of 126972692 is 296279621.

It is a super-2 number, since 2×126972692² = 32244129027453728, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126972691) by changing a digit.

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, 205817 + ... + 206432.

It is an arithmetic number, because the mean of its divisors is an integer number (11543000).

Almost surely, 2^126972692 is an apocalyptic number.

It is an amenable number.

126972692 is an abundant number, since it is smaller than the sum of its proper divisors (150059308).

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

126972692 is a wasteful number, since it uses less digits than its factorization.

126972692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412271 (or 412269 counting only the distinct ones).

The product of its digits is 163296, while the sum is 44.

The square root of 126972692 is about 11268.2160078692. The cubic root of 126972692 is about 502.6165395567.

The spelling of 126972692 in words is "one hundred twenty-six million, nine hundred seventy-two thousand, six hundred ninety-two".