126878434 has 8 divisors (see below), whose sum is σ = 192002220. Its totient is φ = 62877696.

The previous prime is 126878413. The next prime is 126878459. The reversal of 126878434 is 434878621.

It can be written as a sum of positive squares in 2 ways, for example, as 93180409 + 33698025 = 9653^2 + 5805^2 .

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

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, 280479 + ... + 280930.

Almost surely, 2^126878434 is an apocalyptic number.

126878434 is a deficient number, since it is larger than the sum of its proper divisors (65123786).

126878434 is a wasteful number, since it uses less digits than its factorization.

126878434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561524.

The product of its digits is 258048, while the sum is 43.

The square root of 126878434 is about 11264.0327591853. The cubic root of 126878434 is about 502.4921365402.

The spelling of 126878434 in words is "one hundred twenty-six million, eight hundred seventy-eight thousand, four hundred thirty-four".