126512842 has 8 divisors (see below), whose sum is σ = 194898276. Its totient is φ = 61546752.

The previous prime is 126512831. The next prime is 126512863. The reversal of 126512842 is 248215621.

It can be written as a sum of positive squares in 2 ways, for example, as 113401201 + 13111641 = 10649^2 + 3621^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a zygodrome in base 3.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 854743 + ... + 854890.

Almost surely, 2^126512842 is an apocalyptic number.

126512842 is a deficient number, since it is larger than the sum of its proper divisors (68385434).

126512842 is a wasteful number, since it uses less digits than its factorization.

126512842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1709672.

The product of its digits is 7680, while the sum is 31.

The square root of 126512842 is about 11247.7927612488. The cubic root of 126512842 is about 502.0090393763.

The spelling of 126512842 in words is "one hundred twenty-six million, five hundred twelve thousand, eight hundred forty-two".