122752492540 has 24 divisors (see below), whose sum is σ = 259270300800. Its totient is φ = 48817174848.

The previous prime is 122752492531. The next prime is 122752492549. The reversal of 122752492540 is 45294257221.

It is an interprime number because it is at equal distance from previous prime (122752492531) and next prime (122752492549).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122752492549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17735340 + ... + 17742259.

It is an arithmetic number, because the mean of its divisors is an integer number (10802929200).

Almost surely, 2^122752492540 is an apocalyptic number.

122752492540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122752492540 is an abundant number, since it is smaller than the sum of its proper divisors (136517808260).

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

122752492540 is a wasteful number, since it uses less digits than its factorization.

122752492540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35477781 (or 35477779 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 43.

The spelling of 122752492540 in words is "one hundred twenty-two billion, seven hundred fifty-two million, four hundred ninety-two thousand, five hundred forty".