122813393 has 2 divisors, whose sum is σ = 122813394. Its totient is φ = 122813392.

The previous prime is 122813377. The next prime is 122813429. The reversal of 122813393 is 393318221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 93566929 + 29246464 = 9673^2 + 5408^2 .

It is a cyclic number.

It is not a de Polignac number, because 122813393 - 2⁴ = 122813377 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (122819393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61406696 + 61406697.

It is an arithmetic number, because the mean of its divisors is an integer number (61406697).

Almost surely, 2^122813393 is an apocalyptic number.

It is an amenable number.

122813393 is a deficient number, since it is larger than the sum of its proper divisors (1).

122813393 is an equidigital number, since it uses as much as digits as its factorization.

122813393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 32.

The square root of 122813393 is about 11082.1204198475. The cubic root of 122813393 is about 497.0673568374.

The spelling of 122813393 in words is "one hundred twenty-two million, eight hundred thirteen thousand, three hundred ninety-three".