122531444153 has 4 divisors (see below), whose sum is σ = 129739176180. Its totient is φ = 115323712128.

The previous prime is 122531444149. The next prime is 122531444171. The reversal of 122531444153 is 351444135221.

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 107405641984 + 15125802169 = 327728^2 + 122987^2 .

It is a cyclic number.

It is not a de Polignac number, because 122531444153 - 2² = 122531444149 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122531444143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3603865988 + ... + 3603866021.

It is an arithmetic number, because the mean of its divisors is an integer number (32434794045).

Almost surely, 2^122531444153 is an apocalyptic number.

It is an amenable number.

122531444153 is a deficient number, since it is larger than the sum of its proper divisors (7207732027).

122531444153 is an equidigital number, since it uses as much as digits as its factorization.

122531444153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7207732026.

The product of its digits is 57600, while the sum is 35.

Adding to 122531444153 its reverse (351444135221), we get a palindrome (473975579374).

The spelling of 122531444153 in words is "one hundred twenty-two billion, five hundred thirty-one million, four hundred forty-four thousand, one hundred fifty-three".