122188613 has 8 divisors (see below), whose sum is σ = 123153408. Its totient is φ = 121227984.

The previous prime is 122188597. The next prime is 122188663. The reversal of 122188613 is 316881221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122188613 - 2⁴ = 122188597 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122188613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122188663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81095 + ... + 82587.

It is an arithmetic number, because the mean of its divisors is an integer number (15394176).

Almost surely, 2^122188613 is an apocalyptic number.

It is an amenable number.

122188613 is a deficient number, since it is larger than the sum of its proper divisors (964795).

122188613 is a wasteful number, since it uses less digits than its factorization.

122188613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2083.

The product of its digits is 4608, while the sum is 32.

The square root of 122188613 is about 11053.8958290731. The cubic root of 122188613 is about 496.2230247568.

The spelling of 122188613 in words is "one hundred twenty-two million, one hundred eighty-eight thousand, six hundred thirteen".