122573728 has 12 divisors (see below), whose sum is σ = 241317090. Its totient is φ = 61286848.

The previous prime is 122573707. The next prime is 122573771. The reversal of 122573728 is 827375221.

It can be written as a sum of positive squares in only one way, i.e., 87385104 + 35188624 = 9348^2 + 5932^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1915183 + ... + 1915246.

Almost surely, 2^122573728 is an apocalyptic number.

It is an amenable number.

122573728 is a deficient number, since it is larger than the sum of its proper divisors (118743362).

122573728 is an equidigital number, since it uses as much as digits as its factorization.

122573728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3830439 (or 3830431 counting only the distinct ones).

The product of its digits is 47040, while the sum is 37.

The square root of 122573728 is about 11071.3020011198. The cubic root of 122573728 is about 496.7438111681.

The spelling of 122573728 in words is "one hundred twenty-two million, five hundred seventy-three thousand, seven hundred twenty-eight".