122745044540 has 24 divisors (see below), whose sum is σ = 257771410512. Its totient is φ = 49096719360.

The previous prime is 122745044533. The next prime is 122745044549. The reversal of 122745044540 is 45440547221.

It is a junction number, because it is equal to n+sod(n) for n = 122745044494 and 122745044503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122745044549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1148252 + ... + 1250588.

It is an arithmetic number, because the mean of its divisors is an integer number (10740475438).

Almost surely, 2^122745044540 is an apocalyptic number.

122745044540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122745044540 is an abundant number, since it is smaller than the sum of its proper divisors (135026365972).

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

122745044540 is a wasteful number, since it uses less digits than its factorization.

122745044540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162317 (or 162315 counting only the distinct ones).

The product of its (nonzero) digits is 179200, while the sum is 38.

The spelling of 122745044540 in words is "one hundred twenty-two billion, seven hundred forty-five million, forty-four thousand, five hundred forty".