122823413 has 4 divisors (see below), whose sum is σ = 125819148. Its totient is φ = 119827680.

The previous prime is 122823409. The next prime is 122823443. The reversal of 122823413 is 314328221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16176484 + 106646929 = 4022^2 + 10327^2 .

It is a cyclic number.

It is not a de Polignac number, because 122823413 - 2² = 122823409 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122823403) 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, 1497806 + ... + 1497887.

It is an arithmetic number, because the mean of its divisors is an integer number (31454787).

Almost surely, 2^122823413 is an apocalyptic number.

It is an amenable number.

122823413 is a deficient number, since it is larger than the sum of its proper divisors (2995735).

122823413 is an equidigital number, since it uses as much as digits as its factorization.

122823413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2995734.

The product of its digits is 2304, while the sum is 26.

The square root of 122823413 is about 11082.5724901757. The cubic root of 122823413 is about 497.0808745799.

The spelling of 122823413 in words is "one hundred twenty-two million, eight hundred twenty-three thousand, four hundred thirteen".