126409023 has 12 divisors (see below), whose sum is σ = 196636440. Its totient is φ = 77790096.

The previous prime is 126409001. The next prime is 126409043. The reversal of 126409023 is 320904621.

126409023 is a `hidden beast` number, since 12 + 640 + 9 + 0 + 2 + 3 = 666.

It is not a de Polignac number, because 126409023 - 2⁶ = 126408959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126409043) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 540093 + ... + 540326.

It is an arithmetic number, because the mean of its divisors is an integer number (16386370).

Almost surely, 2^126409023 is an apocalyptic number.

126409023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

126409023 is a deficient number, since it is larger than the sum of its proper divisors (70227417).

126409023 is a wasteful number, since it uses less digits than its factorization.

126409023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1080438 (or 1080435 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 126409023 is about 11243.1767307999. The cubic root of 126409023 is about 501.8716822023.

The spelling of 126409023 in words is "one hundred twenty-six million, four hundred nine thousand, twenty-three".