122916280 has 32 divisors (see below), whose sum is σ = 282450240. Its totient is φ = 48119680.

The previous prime is 122916259. The next prime is 122916323. The reversal of 122916280 is 82619221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30811 + ... + 34570.

It is an arithmetic number, because the mean of its divisors is an integer number (8826570).

Almost surely, 2^122916280 is an apocalyptic number.

122916280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122916280 is an abundant number, since it is smaller than the sum of its proper divisors (159533960).

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

122916280 is a wasteful number, since it uses less digits than its factorization.

122916280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65439 (or 65435 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 122916280 is about 11086.7614748402. The cubic root of 122916280 is about 497.2061242611.

The spelling of 122916280 in words is "one hundred twenty-two million, nine hundred sixteen thousand, two hundred eighty".