126432512 has 18 divisors (see below), whose sum is σ = 252371658. Its totient is φ = 63216128.

The previous prime is 126432511. The next prime is 126432521. The reversal of 126432512 is 215234621.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 116294656 + 10137856 = 10784^2 + 3184^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126432511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246683 + ... + 247194.

Almost surely, 2^126432512 is an apocalyptic number.

It is an amenable number.

126432512 is a deficient number, since it is larger than the sum of its proper divisors (125939146).

126432512 is an frugal number, since it uses more digits than its factorization.

126432512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493893 (or 493879 counting only the distinct ones).

The product of its digits is 2880, while the sum is 26.

The square root of 126432512 is about 11244.2212713909. The cubic root of 126432512 is about 501.9027657794.

The spelling of 126432512 in words is "one hundred twenty-six million, four hundred thirty-two thousand, five hundred twelve".