126279225 has 72 divisors (see below), whose sum is σ = 241155200. Its totient is φ = 62985600.

The previous prime is 126279217. The next prime is 126279227. The reversal of 126279225 is 522972621.

It is a happy number.

126279225 is a `hidden beast` number, since 1 + 2 + 627 + 9 + 2 + 25 = 666.

It is not a de Polignac number, because 126279225 - 2³ = 126279217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 126279225.

It is not an unprimeable number, because it can be changed into a prime (126279227) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 465840 + ... + 466110.

Almost surely, 2^126279225 is an apocalyptic number.

126279225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

126279225 is a deficient number, since it is larger than the sum of its proper divisors (114875975).

126279225 is a wasteful number, since it uses less digits than its factorization.

126279225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415 (or 407 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 126279225 is about 11237.4029473006. The cubic root of 126279225 is about 501.6998478192.

The spelling of 126279225 in words is "one hundred twenty-six million, two hundred seventy-nine thousand, two hundred twenty-five".