123255432754739 has 2 divisors, whose sum is σ = 123255432754740. Its totient is φ = 123255432754738.

The previous prime is 123255432754639. The next prime is 123255432754757. The reversal of 123255432754739 is 937457234552321.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123255432754739 is a prime.

It is not a weakly prime, because it can be changed into another prime (123255432754789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61627716377369 + 61627716377370.

It is an arithmetic number, because the mean of its divisors is an integer number (61627716377370).

Almost surely, 2^{123255432754739} is an apocalyptic number.

123255432754739 is a deficient number, since it is larger than the sum of its proper divisors (1).

123255432754739 is an equidigital number, since it uses as much as digits as its factorization.

123255432754739 is an evil number, because the sum of its binary digits is even.

The product of its digits is 190512000, while the sum is 62.

The spelling of 123255432754739 in words is "one hundred twenty-three trillion, two hundred fifty-five billion, four hundred thirty-two million, seven hundred fifty-four thousand, seven hundred thirty-nine".