123418417 has 2 divisors, whose sum is σ = 123418418. Its totient is φ = 123418416.

The previous prime is 123418369. The next prime is 123418429. The reversal of 123418417 is 714814321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87310336 + 36108081 = 9344^2 + 6009^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123418417 is a prime.

It is equal to p_7025179 and since 123418417 and 7025179 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (123418117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61709208 + 61709209.

It is an arithmetic number, because the mean of its divisors is an integer number (61709209).

Almost surely, 2^123418417 is an apocalyptic number.

It is an amenable number.

123418417 is a deficient number, since it is larger than the sum of its proper divisors (1).

123418417 is an equidigital number, since it uses as much as digits as its factorization.

123418417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5376, while the sum is 31.

The square root of 123418417 is about 11109.3841863534. The cubic root of 123418417 is about 497.8822657333.

The spelling of 123418417 in words is "one hundred twenty-three million, four hundred eighteen thousand, four hundred seventeen".