122640196 has 24 divisors (see below), whose sum is σ = 245737856. Its totient is φ = 52462080.

The previous prime is 122640191. The next prime is 122640211. The reversal of 122640196 is 691046221.

It is not an unprimeable number, because it can be changed into a prime (122640191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12361 + ... + 19951.

Almost surely, 2^122640196 is an apocalyptic number.

It is an amenable number.

122640196 is an abundant number, since it is smaller than the sum of its proper divisors (123097660).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122640196 is a wasteful number, since it uses less digits than its factorization.

122640196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8179 (or 8177 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 122640196 is about 11074.3034092443. The cubic root of 122640196 is about 496.8335846234.

The spelling of 122640196 in words is "one hundred twenty-two million, six hundred forty thousand, one hundred ninety-six".