126140423 has 4 divisors (see below), whose sum is σ = 127868448. Its totient is φ = 124412400.

The previous prime is 126140419. The next prime is 126140447. The reversal of 126140423 is 324041621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 126140423 - 2² = 126140419 is a prime.

It is a super-2 number, since 2×126140423² = 31822812629237858, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126140453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 863903 + ... + 864048.

It is an arithmetic number, because the mean of its divisors is an integer number (31967112).

Almost surely, 2^126140423 is an apocalyptic number.

126140423 is a deficient number, since it is larger than the sum of its proper divisors (1728025).

126140423 is an equidigital number, since it uses as much as digits as its factorization.

126140423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1728024.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 126140423 is about 11231.2253561221. The cubic root of 126140423 is about 501.5159630668.

The spelling of 126140423 in words is "one hundred twenty-six million, one hundred forty thousand, four hundred twenty-three".