122648449 has 16 divisors (see below), whose sum is σ = 154498176. Its totient is φ = 94579200.

The previous prime is 122648447. The next prime is 122648459. The reversal of 122648449 is 944846221.

It is a cyclic number.

It is not a de Polignac number, because 122648449 - 2¹ = 122648447 is a prime.

It is a super-3 number, since 3×122648449³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (122648447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 742 + ... + 15679.

It is an arithmetic number, because the mean of its divisors is an integer number (9656136).

Almost surely, 2^122648449 is an apocalyptic number.

It is an amenable number.

122648449 is a deficient number, since it is larger than the sum of its proper divisors (31849727).

122648449 is a wasteful number, since it uses less digits than its factorization.

122648449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16536.

The product of its digits is 110592, while the sum is 40.

The square root of 122648449 is about 11074.6760223494. The cubic root of 122648449 is about 496.8447290816.

The spelling of 122648449 in words is "one hundred twenty-two million, six hundred forty-eight thousand, four hundred forty-nine".