126906938 has 16 divisors (see below), whose sum is σ = 201920040. Its totient is φ = 59613696.

The previous prime is 126906881. The next prime is 126906959. The reversal of 126906938 is 839609621.

It can be written as a sum of positive squares in 4 ways, for example, as 67354849 + 59552089 = 8207^2 + 7717^2 .

It is a super-2 number, since 2×126906938² = 32210741825071688, which contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 17798 + ... + 23886.

Almost surely, 2^126906938 is an apocalyptic number.

126906938 is a deficient number, since it is larger than the sum of its proper divisors (75013102).

126906938 is a wasteful number, since it uses less digits than its factorization.

126906938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6721.

The product of its (nonzero) digits is 139968, while the sum is 44.

The square root of 126906938 is about 11265.2979543375. The cubic root of 126906938 is about 502.5297630119.

The spelling of 126906938 in words is "one hundred twenty-six million, nine hundred six thousand, nine hundred thirty-eight".