126502172 has 12 divisors (see below), whose sum is σ = 221457600. Its totient is φ = 63228576.

The previous prime is 126502169. The next prime is 126502177. The reversal of 126502172 is 271205621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126502177) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18704 + ... + 24552.

It is an arithmetic number, because the mean of its divisors is an integer number (18454800).

Almost surely, 2^126502172 is an apocalyptic number.

It is an amenable number.

126502172 is a deficient number, since it is larger than the sum of its proper divisors (94955428).

126502172 is a wasteful number, since it uses less digits than its factorization.

126502172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11260 (or 11258 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 126502172 is about 11247.3184359651. The cubic root of 126502172 is about 501.9949259552.

Adding to 126502172 its reverse (271205621), we get a palindrome (397707793).

The spelling of 126502172 in words is "one hundred twenty-six million, five hundred two thousand, one hundred seventy-two".