122290313 has 2 divisors, whose sum is σ = 122290314. Its totient is φ = 122290312.

The previous prime is 122290309. The next prime is 122290321. The reversal of 122290313 is 313092221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 121264144 + 1026169 = 11012^2 + 1013^2 .

It is a cyclic number.

It is not a de Polignac number, because 122290313 - 2² = 122290309 is a prime.

It is not a weakly prime, because it can be changed into another prime (122280313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61145156 + 61145157.

It is an arithmetic number, because the mean of its divisors is an integer number (61145157).

Almost surely, 2^122290313 is an apocalyptic number.

It is an amenable number.

122290313 is a deficient number, since it is larger than the sum of its proper divisors (1).

122290313 is an equidigital number, since it uses as much as digits as its factorization.

122290313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 122290313 is about 11058.4950603597. The cubic root of 122290313 is about 496.3606586590.

The spelling of 122290313 in words is "one hundred twenty-two million, two hundred ninety thousand, three hundred thirteen".