126137816 has 16 divisors (see below), whose sum is σ = 270295440. Its totient is φ = 54059040.

The previous prime is 126137779. The next prime is 126137821. The reversal of 126137816 is 618731621.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 1126175 + ... + 1126286.

It is an arithmetic number, because the mean of its divisors is an integer number (16893465).

Almost surely, 2^126137816 is an apocalyptic number.

It is an amenable number.

126137816 is an abundant number, since it is smaller than the sum of its proper divisors (144157624).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

126137816 is a wasteful number, since it uses less digits than its factorization.

126137816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2252474 (or 2252470 counting only the distinct ones).

The product of its digits is 12096, while the sum is 35.

The square root of 126137816 is about 11231.1092951676. The cubic root of 126137816 is about 501.5125080254.

The spelling of 126137816 in words is "one hundred twenty-six million, one hundred thirty-seven thousand, eight hundred sixteen".