126478742 has 32 divisors (see below), whose sum is σ = 219923424. Its totient is φ = 54028800.

The previous prime is 126478733. The next prime is 126478777. The reversal of 126478742 is 247874621.

It is a happy number.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 126478742.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24617 + ... + 29307.

It is an arithmetic number, because the mean of its divisors is an integer number (6872607).

Almost surely, 2^126478742 is an apocalyptic number.

126478742 is a deficient number, since it is larger than the sum of its proper divisors (93444682).

126478742 is a wasteful number, since it uses less digits than its factorization.

126478742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4784.

The product of its digits is 150528, while the sum is 41.

The square root of 126478742 is about 11246.2768061257. The cubic root of 126478742 is about 501.9639318435.

The spelling of 126478742 in words is "one hundred twenty-six million, four hundred seventy-eight thousand, seven hundred forty-two".