122744648 has 16 divisors (see below), whose sum is σ = 247849980. Its totient is φ = 56651328.

The previous prime is 122744647. The next prime is 122744659. The reversal of 122744648 is 846447221.

It can be written as a sum of positive squares in 2 ways, for example, as 119202724 + 3541924 = 10918^2 + 1882^2 .

It is a super-2 number, since 2×122744648² = 30132497225287808, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (122744647) 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, 590015 + ... + 590222.

Almost surely, 2^122744648 is an apocalyptic number.

It is an amenable number.

122744648 is an abundant number, since it is smaller than the sum of its proper divisors (125105332).

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

122744648 is a wasteful number, since it uses less digits than its factorization.

122744648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1180256 (or 1180252 counting only the distinct ones).

The product of its digits is 86016, while the sum is 38.

The square root of 122744648 is about 11079.0183680685. The cubic root of 122744648 is about 496.9745947687.

The spelling of 122744648 in words is "one hundred twenty-two million, seven hundred forty-four thousand, six hundred forty-eight".