122451240 has 64 divisors (see below), whose sum is σ = 379215360. Its totient is φ = 31599360.

The previous prime is 122451239. The next prime is 122451269. The reversal of 122451240 is 42154221.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12739 + ... + 20178.

It is an arithmetic number, because the mean of its divisors is an integer number (5925240).

Almost surely, 2^122451240 is an apocalyptic number.

122451240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122451240 is an abundant number, since it is smaller than the sum of its proper divisors (256764120).

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

122451240 is a wasteful number, since it uses less digits than its factorization.

122451240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32962 (or 32958 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 122451240 is about 11065.7688390821. The cubic root of 122451240 is about 496.5782905579.

The spelling of 122451240 in words is "one hundred twenty-two million, four hundred fifty-one thousand, two hundred forty".