126431372 has 18 divisors (see below), whose sum is σ = 226795044. Its totient is φ = 61670560.

The previous prime is 126431351. The next prime is 126431381. The reversal of 126431372 is 273134621.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2678 + ... + 16125.

Almost surely, 2^126431372 is an apocalyptic number.

It is an amenable number.

126431372 is a deficient number, since it is larger than the sum of its proper divisors (100363672).

126431372 is a wasteful number, since it uses less digits than its factorization.

126431372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18889 (or 18846 counting only the distinct ones).

The product of its digits is 6048, while the sum is 29.

The square root of 126431372 is about 11244.1705785709. The cubic root of 126431372 is about 501.9012572780.

Adding to 126431372 its reverse (273134621), we get a palindrome (399565993).

The spelling of 126431372 in words is "one hundred twenty-six million, four hundred thirty-one thousand, three hundred seventy-two".