126138774 has 16 divisors (see below), whose sum is σ = 253790208. Its totient is φ = 41794152.

The previous prime is 126138773. The next prime is 126138797. The reversal of 126138774 is 477831621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126138773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61942 + ... + 63945.

It is an arithmetic number, because the mean of its divisors is an integer number (15861888).

Almost surely, 2^126138774 is an apocalyptic number.

126138774 is an abundant number, since it is smaller than the sum of its proper divisors (127651434).

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

126138774 is a wasteful number, since it uses less digits than its factorization.

126138774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126059.

The product of its digits is 56448, while the sum is 39.

The square root of 126138774 is about 11231.1519444801. The cubic root of 126138774 is about 501.5137776626.

The spelling of 126138774 in words is "one hundred twenty-six million, one hundred thirty-eight thousand, seven hundred seventy-four".