126364521 has 8 divisors (see below), whose sum is σ = 169210080. Its totient is φ = 83880992.

The previous prime is 126364493. The next prime is 126364523. The reversal of 126364521 is 125463621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 126364521 - 2⁷ = 126364393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (126364523) 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, 89691 + ... + 91088.

It is an arithmetic number, because the mean of its divisors is an integer number (21151260).

Almost surely, 2^126364521 is an apocalyptic number.

It is an amenable number.

126364521 is a deficient number, since it is larger than the sum of its proper divisors (42845559).

126364521 is a wasteful number, since it uses less digits than its factorization.

126364521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181015.

The product of its digits is 8640, while the sum is 30.

The square root of 126364521 is about 11241.1974895916. The cubic root of 126364521 is about 501.8127810403.

The spelling of 126364521 in words is "one hundred twenty-six million, three hundred sixty-four thousand, five hundred twenty-one".