122155313 has 16 divisors (see below), whose sum is σ = 147363840. Its totient is φ = 98917200.

The previous prime is 122155309. The next prime is 122155339. The reversal of 122155313 is 313551221.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 122155313 - 2² = 122155309 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122155213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56258 + ... + 58388.

It is an arithmetic number, because the mean of its divisors is an integer number (9210240).

Almost surely, 2^122155313 is an apocalyptic number.

It is an amenable number.

122155313 is a deficient number, since it is larger than the sum of its proper divisors (25208527).

122155313 is a wasteful number, since it uses less digits than its factorization.

122155313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2588.

The product of its digits is 900, while the sum is 23.

The square root of 122155313 is about 11052.3894701553. The cubic root of 122155313 is about 496.1779421924.

The spelling of 122155313 in words is "one hundred twenty-two million, one hundred fifty-five thousand, three hundred thirteen".