126431252 has 12 divisors (see below), whose sum is σ = 221430720. Its totient is φ = 63165336.

The previous prime is 126431233. The next prime is 126431273. The reversal of 126431252 is 252134621.

It is a happy number.

It is a super-2 number, since 2×126431252² = 31969722964575008, 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 3 ways as a sum of consecutive naturals, for example, 6602 + ... + 17217.

It is an arithmetic number, because the mean of its divisors is an integer number (18452560).

Almost surely, 2^126431252 is an apocalyptic number.

It is an amenable number.

126431252 is a deficient number, since it is larger than the sum of its proper divisors (94999468).

126431252 is a wasteful number, since it uses less digits than its factorization.

126431252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25150 (or 25148 counting only the distinct ones).

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

The square root of 126431252 is about 11244.1652424713. The cubic root of 126431252 is about 501.9010984879.

Adding to 126431252 its reverse (252134621), we get a palindrome (378565873).

The spelling of 126431252 in words is "one hundred twenty-six million, four hundred thirty-one thousand, two hundred fifty-two".