122738057 has 4 divisors (see below), whose sum is σ = 132179460. Its totient is φ = 113296656.

The previous prime is 122738053. The next prime is 122738071. The reversal of 122738057 is 750837221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14661241 + 108076816 = 3829^2 + 10396^2 .

It is a cyclic number.

It is not a de Polignac number, because 122738057 - 2² = 122738053 is a prime.

It is a super-2 number, since 2×122738057² = 30129261272270498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122738053) 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 3 ways as a sum of consecutive naturals, for example, 4720682 + ... + 4720707.

It is an arithmetic number, because the mean of its divisors is an integer number (33044865).

Almost surely, 2^122738057 is an apocalyptic number.

It is an amenable number.

122738057 is a deficient number, since it is larger than the sum of its proper divisors (9441403).

122738057 is an equidigital number, since it uses as much as digits as its factorization.

122738057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9441402.

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 122738057 is about 11078.7209099246. The cubic root of 122738057 is about 496.9656992874.

The spelling of 122738057 in words is "one hundred twenty-two million, seven hundred thirty-eight thousand, fifty-seven".