126743742 has 12 divisors (see below), whose sum is σ = 274611480. Its totient is φ = 42247908.

The previous prime is 126743713. The next prime is 126743791. The reversal of 126743742 is 247347621.

It is a super-2 number, since 2×126743742² = 32127952272325128, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 126743697 and 126743706.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3520642 + ... + 3520677.

It is an arithmetic number, because the mean of its divisors is an integer number (22884290).

Almost surely, 2^126743742 is an apocalyptic number.

126743742 is an abundant number, since it is smaller than the sum of its proper divisors (147867738).

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

126743742 is a wasteful number, since it uses less digits than its factorization.

126743742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7041327 (or 7041324 counting only the distinct ones).

The product of its digits is 56448, while the sum is 36.

The square root of 126743742 is about 11258.0523182298. The cubic root of 126743742 is about 502.3142611972.

The spelling of 126743742 in words is "one hundred twenty-six million, seven hundred forty-three thousand, seven hundred forty-two".