123815353 has 2 divisors, whose sum is σ = 123815354. Its totient is φ = 123815352.

The previous prime is 123815327. The next prime is 123815387. The reversal of 123815353 is 353518321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111788329 + 12027024 = 10573^2 + 3468^2 .

It is a cyclic number.

It is not a de Polignac number, because 123815353 - 2²⁵ = 90260921 is a prime.

It is not a weakly prime, because it can be changed into another prime (123815053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61907676 + 61907677.

It is an arithmetic number, because the mean of its divisors is an integer number (61907677).

Almost surely, 2^123815353 is an apocalyptic number.

It is an amenable number.

123815353 is a deficient number, since it is larger than the sum of its proper divisors (1).

123815353 is an equidigital number, since it uses as much as digits as its factorization.

123815353 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10800, while the sum is 31.

The square root of 123815353 is about 11127.2347418395. The cubic root of 123815353 is about 498.4154544018.

The spelling of 123815353 in words is "one hundred twenty-three million, eight hundred fifteen thousand, three hundred fifty-three".