126945972 has 36 divisors (see below), whose sum is σ = 325686816. Its totient is φ = 41682960.

The previous prime is 126945967. The next prime is 126945983. The reversal of 126945972 is 279549621.

126945972 is a `hidden beast` number, since 126 + 9 + 459 + 72 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×126945972² = 32230559614049568, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23904 + ... + 28727.

It is an arithmetic number, because the mean of its divisors is an integer number (9046856).

Almost surely, 2^126945972 is an apocalyptic number.

126945972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

126945972 is an abundant number, since it is smaller than the sum of its proper divisors (198740844).

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

126945972 is a wasteful number, since it uses less digits than its factorization.

126945972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52708 (or 52703 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 126945972 is about 11267.0303097134. The cubic root of 126945972 is about 502.5812803844.

The spelling of 126945972 in words is "one hundred twenty-six million, nine hundred forty-five thousand, nine hundred seventy-two".