122543437 has 2 divisors, whose sum is σ = 122543438. Its totient is φ = 122543436.

The previous prime is 122543423. The next prime is 122543459. The reversal of 122543437 is 734345221.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86471401 + 36072036 = 9299^2 + 6006^2 .

It is a cyclic number.

It is not a de Polignac number, because 122543437 - 2²³ = 114154829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122543399 and 122543408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122543467) 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 as a sum of consecutive naturals, namely, 61271718 + 61271719.

It is an arithmetic number, because the mean of its divisors is an integer number (61271719).

Almost surely, 2^122543437 is an apocalyptic number.

It is an amenable number.

122543437 is a deficient number, since it is larger than the sum of its proper divisors (1).

122543437 is an equidigital number, since it uses as much as digits as its factorization.

122543437 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 31.

The square root of 122543437 is about 11069.9339203086. The cubic root of 122543437 is about 496.7028885694.

Adding to 122543437 its reverse (734345221), we get a palindrome (856888658).

The spelling of 122543437 in words is "one hundred twenty-two million, five hundred forty-three thousand, four hundred thirty-seven".