122520773 has 6 divisors (see below), whose sum is σ = 126601542. Its totient is φ = 118567560.

The previous prime is 122520733. The next prime is 122520779. The reversal of 122520773 is 377025221.

It can be written as a sum of positive squares in only one way, i.e., 109139809 + 13380964 = 10447^2 + 3658^2 .

It is not a de Polignac number, because 122520773 - 2¹⁸ = 122258629 is a prime.

It is a super-2 number, since 2×122520773² = 30022679633035058, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122520779) by changing a digit.

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 in 5 ways as a sum of consecutive naturals, for example, 62786 + ... + 64707.

It is an arithmetic number, because the mean of its divisors is an integer number (21100257).

Almost surely, 2^122520773 is an apocalyptic number.

It is an amenable number.

122520773 is a deficient number, since it is larger than the sum of its proper divisors (4080769).

122520773 is an equidigital number, since it uses as much as digits as its factorization.

122520773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127555 (or 127524 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 122520773 is about 11068.9101992924. The cubic root of 122520773 is about 496.6722655005.

Adding to 122520773 its reverse (377025221), we get a palindrome (499545994).

The spelling of 122520773 in words is "one hundred twenty-two million, five hundred twenty thousand, seven hundred seventy-three".