122347780 has 12 divisors (see below), whose sum is σ = 256930380. Its totient is φ = 48939104.

The previous prime is 122347763. The next prime is 122347801. The reversal of 122347780 is 87743221.

It can be written as a sum of positive squares in 2 ways, for example, as 86155524 + 36192256 = 9282^2 + 6016^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3058675 + ... + 3058714.

It is an arithmetic number, because the mean of its divisors is an integer number (21410865).

Almost surely, 2^122347780 is an apocalyptic number.

122347780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122347780 is an abundant number, since it is smaller than the sum of its proper divisors (134582600).

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

122347780 is a wasteful number, since it uses less digits than its factorization.

122347780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6117398 (or 6117396 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 122347780 is about 11061.0930743756. The cubic root of 122347780 is about 496.4383968716.

The spelling of 122347780 in words is "one hundred twenty-two million, three hundred forty-seven thousand, seven hundred eighty".