126724864 has 36 divisors (see below), whose sum is σ = 289095184. Its totient is φ = 54309888.

The previous prime is 126724859. The next prime is 126724883. The reversal of 126724864 is 468427621.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33567 + ... + 37150.

Almost surely, 2^126724864 is an apocalyptic number.

126724864 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

126724864 is an abundant number, since it is smaller than the sum of its proper divisors (162370320).

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

126724864 is an frugal number, since it uses more digits than its factorization.

126724864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70740 (or 70726 counting only the distinct ones).

The product of its digits is 129024, while the sum is 40.

The square root of 126724864 is about 11257.2138648957. The cubic root of 126724864 is about 502.2893206905.

The spelling of 126724864 in words is "one hundred twenty-six million, seven hundred twenty-four thousand, eight hundred sixty-four".