126438179 has 24 divisors (see below), whose sum is σ = 157210560. Its totient is φ = 101089296.

The previous prime is 126438161. The next prime is 126438227. The reversal of 126438179 is 971834621.

It is a de Polignac number, because none of the positive numbers 2^k-126438179 is a prime.

It is a super-2 number, since 2×126438179² = 31973226217672082, which contains 22 as substring.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (126408179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61364 + ... + 63390.

It is an arithmetic number, because the mean of its divisors is an integer number (6550440).

Almost surely, 2^126438179 is an apocalyptic number.

126438179 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

126438179 is a deficient number, since it is larger than the sum of its proper divisors (30772381).

126438179 is a wasteful number, since it uses less digits than its factorization.

126438179 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2127 (or 2120 counting only the distinct ones).

The product of its digits is 72576, while the sum is 41.

The square root of 126438179 is about 11244.4732646754. The cubic root of 126438179 is about 501.9102644848.

The spelling of 126438179 in words is "one hundred twenty-six million, four hundred thirty-eight thousand, one hundred seventy-nine".