122753845 has 4 divisors (see below), whose sum is σ = 147304620. Its totient is φ = 98203072.

The previous prime is 122753837. The next prime is 122753857. The reversal of 122753845 is 548357221.

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 43151761 + 79602084 = 6569^2 + 8922^2 .

It is a cyclic number.

It is not a de Polignac number, because 122753845 - 2³ = 122753837 is a prime.

It is a congruent number.

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 in 3 ways as a sum of consecutive naturals, for example, 12275380 + ... + 12275389.

It is an arithmetic number, because the mean of its divisors is an integer number (36826155).

Almost surely, 2^122753845 is an apocalyptic number.

It is an amenable number.

122753845 is a deficient number, since it is larger than the sum of its proper divisors (24550775).

122753845 is an equidigital number, since it uses as much as digits as its factorization.

122753845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24550774.

The product of its digits is 67200, while the sum is 37.

The square root of 122753845 is about 11079.4334241422. The cubic root of 122753845 is about 496.9870068814.

The spelling of 122753845 in words is "one hundred twenty-two million, seven hundred fifty-three thousand, eight hundred forty-five".