126173394 has 24 divisors (see below), whose sum is σ = 273601692. Its totient is φ = 42023040.

The previous prime is 126173389. The next prime is 126173401. The reversal of 126173394 is 493371621.

126173394 is a `hidden beast` number, since 1 + 2 + 617 + 3 + 39 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 124880625 + 1292769 = 11175^2 + 1137^2 .

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 11 ways as a sum of consecutive naturals, for example, 28942 + ... + 33014.

Almost surely, 2^126173394 is an apocalyptic number.

126173394 is an abundant number, since it is smaller than the sum of its proper divisors (147428298).

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

126173394 is a wasteful number, since it uses less digits than its factorization.

126173394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5802 (or 5799 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 126173394 is about 11232.6930875903. The cubic root of 126173394 is about 501.5596552260.

The spelling of 126173394 in words is "one hundred twenty-six million, one hundred seventy-three thousand, three hundred ninety-four".