123455413 has 2 divisors, whose sum is σ = 123455414. Its totient is φ = 123455412.

The previous prime is 123455401. The next prime is 123455419. The reversal of 123455413 is 314554321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120626289 + 2829124 = 10983^2 + 1682^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123455413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123455419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61727706 + 61727707.

It is an arithmetic number, because the mean of its divisors is an integer number (61727707).

Almost surely, 2^123455413 is an apocalyptic number.

It is an amenable number.

123455413 is a deficient number, since it is larger than the sum of its proper divisors (1).

123455413 is an equidigital number, since it uses as much as digits as its factorization.

123455413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7200, while the sum is 28.

The square root of 123455413 is about 11111.0491403827. The cubic root of 123455413 is about 497.9320092874.

The spelling of 123455413 in words is "one hundred twenty-three million, four hundred fifty-five thousand, four hundred thirteen".