122501790 has 24 divisors (see below), whose sum is σ = 318504888. Its totient is φ = 32667120.

The previous prime is 122501777. The next prime is 122501791. The reversal of 122501790 is 97105221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122501791) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 680476 + ... + 680655.

It is an arithmetic number, because the mean of its divisors is an integer number (13271037).

Almost surely, 2^122501790 is an apocalyptic number.

122501790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122501790 is an abundant number, since it is smaller than the sum of its proper divisors (196003098).

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

122501790 is a wasteful number, since it uses less digits than its factorization.

122501790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1361144 (or 1361141 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 122501790 is about 11068.0526742512. The cubic root of 122501790 is about 496.6466132067.

The spelling of 122501790 in words is "one hundred twenty-two million, five hundred one thousand, seven hundred ninety".