122678452 has 36 divisors (see below), whose sum is σ = 234038700. Its totient is φ = 56239872.

The previous prime is 122678419. The next prime is 122678453. The reversal of 122678452 is 254876221.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 929296 + 121749156 = 964^2 + 11034^2 .

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122678453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 116424 + ... + 117472.

It is an arithmetic number, because the mean of its divisors is an integer number (6501075).

Almost surely, 2^122678452 is an apocalyptic number.

It is an amenable number.

122678452 is a deficient number, since it is larger than the sum of its proper divisors (111360248).

122678452 is a wasteful number, since it uses less digits than its factorization.

122678452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1252 (or 1237 counting only the distinct ones).

The product of its digits is 53760, while the sum is 37.

The square root of 122678452 is about 11076.0305163899. The cubic root of 122678452 is about 496.8852394921.

The spelling of 122678452 in words is "one hundred twenty-two million, six hundred seventy-eight thousand, four hundred fifty-two".