126278542 has 16 divisors (see below), whose sum is σ = 207839520. Its totient is φ = 57182112.

The previous prime is 126278527. The next prime is 126278563. The reversal of 126278542 is 245872621.

It is a happy number.

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, 44442 + ... + 47197.

It is an arithmetic number, because the mean of its divisors is an integer number (12989970).

Almost surely, 2^126278542 is an apocalyptic number.

126278542 is a deficient number, since it is larger than the sum of its proper divisors (81560978).

126278542 is a wasteful number, since it uses less digits than its factorization.

126278542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91707.

The product of its digits is 53760, while the sum is 37.

The square root of 126278542 is about 11237.3725576756. The cubic root of 126278542 is about 501.6989433115.

The spelling of 126278542 in words is "one hundred twenty-six million, two hundred seventy-eight thousand, five hundred forty-two".