122339540 has 12 divisors (see below), whose sum is σ = 256913076. Its totient is φ = 48935808.

The previous prime is 122339533. The next prime is 122339549. The reversal of 122339540 is 45933221.

It can be written as a sum of positive squares in 2 ways, for example, as 22259524 + 100080016 = 4718^2 + 10004^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122339549) 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, 3058469 + ... + 3058508.

It is an arithmetic number, because the mean of its divisors is an integer number (21409423).

Almost surely, 2^122339540 is an apocalyptic number.

122339540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122339540 is an abundant number, since it is smaller than the sum of its proper divisors (134573536).

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

122339540 is a wasteful number, since it uses less digits than its factorization.

122339540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6116986 (or 6116984 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 122339540 is about 11060.7205913539. The cubic root of 122339540 is about 496.4272517458.

The spelling of 122339540 in words is "one hundred twenty-two million, three hundred thirty-nine thousand, five hundred forty".