122723560 has 16 divisors (see below), whose sum is σ = 276128100. Its totient is φ = 49089408.

The previous prime is 122723509. The next prime is 122723581. The reversal of 122723560 is 65327221.

It can be written as a sum of positive squares in 2 ways, for example, as 103591684 + 19131876 = 10178^2 + 4374^2 .

It is a super-2 number, since 2×122723560² = 30122144358147200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1534005 + ... + 1534084.

Almost surely, 2^122723560 is an apocalyptic number.

122723560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122723560 is an abundant number, since it is smaller than the sum of its proper divisors (153404540).

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

122723560 is a wasteful number, since it uses less digits than its factorization.

122723560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3068100 (or 3068096 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 122723560 is about 11078.0666183229. The cubic root of 122723560 is about 496.9461324266.

The spelling of 122723560 in words is "one hundred twenty-two million, seven hundred twenty-three thousand, five hundred sixty".