122648493 has 16 divisors (see below), whose sum is σ = 184154112. Its totient is φ = 71934000.

The previous prime is 122648483. The next prime is 122648501. The reversal of 122648493 is 394846221.

It is not a de Polignac number, because 122648493 - 2¹² = 122644397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122648483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58923 + ... + 60968.

It is an arithmetic number, because the mean of its divisors is an integer number (11509632).

Almost surely, 2^122648493 is an apocalyptic number.

It is an amenable number.

122648493 is a deficient number, since it is larger than the sum of its proper divisors (61505619).

122648493 is a wasteful number, since it uses less digits than its factorization.

122648493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119936.

The product of its digits is 82944, while the sum is 39.

The square root of 122648493 is about 11074.6780088633. The cubic root of 122648493 is about 496.8447884957.

The spelling of 122648493 in words is "one hundred twenty-two million, six hundred forty-eight thousand, four hundred ninety-three".