126072723 has 16 divisors (see below), whose sum is σ = 192828416. Its totient is φ = 71772480.

The previous prime is 126072719. The next prime is 126072757. The reversal of 126072723 is 327270621.

It is not a de Polignac number, because 126072723 - 2² = 126072719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126072763) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5386 + ... + 16767.

It is an arithmetic number, because the mean of its divisors is an integer number (12051776).

Almost surely, 2^126072723 is an apocalyptic number.

126072723 is a deficient number, since it is larger than the sum of its proper divisors (66755693).

126072723 is a wasteful number, since it uses less digits than its factorization.

126072723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22434.

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 126072723 is about 11228.2110329295. The cubic root of 126072723 is about 501.4262252284.

The spelling of 126072723 in words is "one hundred twenty-six million, seventy-two thousand, seven hundred twenty-three".