122740916 has 12 divisors (see below), whose sum is σ = 215573988. Its totient is φ = 61148352.

The previous prime is 122740913. The next prime is 122740927. The reversal of 122740916 is 619047221.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 16032016 + 106708900 = 4004^2 + 10330^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122740913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54281 + ... + 56496.

It is an arithmetic number, because the mean of its divisors is an integer number (17964499).

Almost surely, 2^122740916 is an apocalyptic number.

It is an amenable number.

122740916 is a deficient number, since it is larger than the sum of its proper divisors (92833072).

122740916 is a wasteful number, since it uses less digits than its factorization.

122740916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111058 (or 111056 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 122740916 is about 11078.8499403142. The cubic root of 122740916 is about 496.9695579490.

The spelling of 122740916 in words is "one hundred twenty-two million, seven hundred forty thousand, nine hundred sixteen".