126615478 has 16 divisors (see below), whose sum is σ = 212008896. Its totient is φ = 56213640.

The previous prime is 126615469. The next prime is 126615491. The reversal of 126615478 is 874516621.

It is a self number, because there is not a number n which added to its sum of digits gives 126615478.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65976 + ... + 67867.

It is an arithmetic number, because the mean of its divisors is an integer number (13250556).

Almost surely, 2^126615478 is an apocalyptic number.

126615478 is a deficient number, since it is larger than the sum of its proper divisors (85393418).

126615478 is a wasteful number, since it uses less digits than its factorization.

126615478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133899.

The product of its digits is 80640, while the sum is 40.

The square root of 126615478 is about 11252.3543314277. The cubic root of 126615478 is about 502.1447575424.

The spelling of 126615478 in words is "one hundred twenty-six million, six hundred fifteen thousand, four hundred seventy-eight".