122845194 has 48 divisors (see below), whose sum is σ = 278389440. Its totient is φ = 40146120.

The previous prime is 122845193. The next prime is 122845207. The reversal of 122845194 is 491548221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122845193) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 686197 + ... + 686375.

It is an arithmetic number, because the mean of its divisors is an integer number (5799780).

Almost surely, 2^122845194 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122845194, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139194720).

122845194 is an abundant number, since it is smaller than the sum of its proper divisors (155544246).

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

122845194 is an equidigital number, since it uses as much as digits as its factorization.

122845194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440 (or 255 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 122845194 is about 11083.5551155755. Note that the first 3 decimals coincide. The cubic root of 122845194 is about 497.1102562706.

The spelling of 122845194 in words is "one hundred twenty-two million, eight hundred forty-five thousand, one hundred ninety-four".