126269172 has 48 divisors (see below), whose sum is σ = 341604480. Its totient is φ = 40258944.

The previous prime is 126269147. The next prime is 126269177. The reversal of 126269172 is 271962621.

126269172 is a `hidden beast` number, since 12 + 626 + 9 + 17 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126269177) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22933 + ... + 27900.

It is an arithmetic number, because the mean of its divisors is an integer number (7116760).

Almost surely, 2^126269172 is an apocalyptic number.

126269172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

126269172 is an abundant number, since it is smaller than the sum of its proper divisors (215335308).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

126269172 is a wasteful number, since it uses less digits than its factorization.

126269172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50869 (or 50861 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 126269172 is about 11236.9556375381. The cubic root of 126269172 is about 501.6865341423.

The spelling of 126269172 in words is "one hundred twenty-six million, two hundred sixty-nine thousand, one hundred seventy-two".