126455123 has 4 divisors (see below), whose sum is σ = 126532560. Its totient is φ = 126377688.

The previous prime is 126455093. The next prime is 126455137. The reversal of 126455123 is 321554621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321554621 = 1019 ⋅315559.

It is a cyclic number.

It is not a de Polignac number, because 126455123 - 2⁶ = 126455059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126455183) 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, 36215 + ... + 39552.

It is an arithmetic number, because the mean of its divisors is an integer number (31633140).

Almost surely, 2^126455123 is an apocalyptic number.

126455123 is a deficient number, since it is larger than the sum of its proper divisors (77437).

126455123 is an equidigital number, since it uses as much as digits as its factorization.

126455123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77436.

The product of its digits is 7200, while the sum is 29.

The square root of 126455123 is about 11245.2266762391. The cubic root of 126455123 is about 501.9326838409.

The spelling of 126455123 in words is "one hundred twenty-six million, four hundred fifty-five thousand, one hundred twenty-three".