712255123 has 4 divisors (see below), whose sum is σ = 713900488. Its totient is φ = 710609760.

The previous prime is 712255097. The next prime is 712255127. The reversal of 712255123 is 321552217.

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 712255123 - 2¹⁷ = 712124051 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 712255091 and 712255100.

It is not an unprimeable number, because it can be changed into a prime (712255127) 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, 822033 + ... + 822898.

It is an arithmetic number, because the mean of its divisors is an integer number (178475122).

Almost surely, 2^712255123 is an apocalyptic number.

712255123 is a deficient number, since it is larger than the sum of its proper divisors (1645365).

712255123 is a wasteful number, since it uses less digits than its factorization.

712255123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1645364.

The product of its digits is 4200, while the sum is 28.

The square root of 712255123 is about 26688.1082694147. The cubic root of 712255123 is about 893.0556598605.

The spelling of 712255123 in words is "seven hundred twelve million, two hundred fifty-five thousand, one hundred twenty-three".