122553428 has 12 divisors (see below), whose sum is σ = 219699732. Its totient is φ = 59782080.

The previous prime is 122553427. The next prime is 122553461. The reversal of 122553428 is 824355221.

It can be written as a sum of positive squares in 2 ways, for example, as 33779344 + 88774084 = 5812^2 + 9422^2 .

It is a junction number, because it is equal to n+sod(n) for n = 122553394 and 122553403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122553421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 373475 + ... + 373802.

It is an arithmetic number, because the mean of its divisors is an integer number (18308311).

Almost surely, 2^122553428 is an apocalyptic number.

It is an amenable number.

122553428 is a deficient number, since it is larger than the sum of its proper divisors (97146304).

122553428 is a wasteful number, since it uses less digits than its factorization.

122553428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747322 (or 747320 counting only the distinct ones).

The product of its digits is 19200, while the sum is 32.

The square root of 122553428 is about 11070.3851784841. The cubic root of 122553428 is about 496.7163869767.

The spelling of 122553428 in words is "one hundred twenty-two million, five hundred fifty-three thousand, four hundred twenty-eight".