122148685 has 4 divisors (see below), whose sum is σ = 146578428. Its totient is φ = 97718944.

The previous prime is 122148661. The next prime is 122148709. The reversal of 122148685 is 586841221.

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

It is an interprime number because it is at equal distance from previous prime (122148661) and next prime (122148709).

It can be written as a sum of positive squares in 2 ways, for example, as 17413929 + 104734756 = 4173^2 + 10234^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122148685 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 12214864 + ... + 12214873.

It is an arithmetic number, because the mean of its divisors is an integer number (36644607).

Almost surely, 2^122148685 is an apocalyptic number.

It is an amenable number.

122148685 is a deficient number, since it is larger than the sum of its proper divisors (24429743).

122148685 is an equidigital number, since it uses as much as digits as its factorization.

122148685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24429742.

The product of its digits is 30720, while the sum is 37.

The square root of 122148685 is about 11052.0896214245. The cubic root of 122148685 is about 496.1689680244.

The spelling of 122148685 in words is "one hundred twenty-two million, one hundred forty-eight thousand, six hundred eighty-five".