122531243 has 4 divisors (see below), whose sum is σ = 123466728. Its totient is φ = 121595760.

The previous prime is 122531239. The next prime is 122531263. The reversal of 122531243 is 342135221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 342135221 = 293 ⋅1167697.

It is a cyclic number.

It is not a de Polignac number, because 122531243 - 2² = 122531239 is a prime.

It is a super-2 number, since 2×122531243² = 30027811022250098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122531203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 467546 + ... + 467807.

It is an arithmetic number, because the mean of its divisors is an integer number (30866682).

Almost surely, 2^122531243 is an apocalyptic number.

122531243 is a deficient number, since it is larger than the sum of its proper divisors (935485).

122531243 is an equidigital number, since it uses as much as digits as its factorization.

122531243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 935484.

The product of its digits is 1440, while the sum is 23.

The square root of 122531243 is about 11069.3831354778. The cubic root of 122531243 is about 496.6864127899.

Adding to 122531243 its reverse (342135221), we get a palindrome (464666464).

The spelling of 122531243 in words is "one hundred twenty-two million, five hundred thirty-one thousand, two hundred forty-three".