122523240 has 64 divisors (see below), whose sum is σ = 420082560. Its totient is φ = 28005120.

The previous prime is 122523223. The next prime is 122523251. The reversal of 122523240 is 42325221.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72091 + ... + 73770.

It is an arithmetic number, because the mean of its divisors is an integer number (6563790).

Almost surely, 2^122523240 is an apocalyptic number.

122523240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122523240 is an abundant number, since it is smaller than the sum of its proper divisors (297559320).

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

122523240 is a wasteful number, since it uses less digits than its factorization.

122523240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145882 (or 145878 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 122523240 is about 11069.0216369831. The cubic root of 122523240 is about 496.6755990366.

Adding to 122523240 its reverse (42325221), we get a palindrome (164848461).

It can be divided in two parts, 12 and 2523240, that added together give a palindrome (2523252).

The spelling of 122523240 in words is "one hundred twenty-two million, five hundred twenty-three thousand, two hundred forty".