122531533 has 2 divisors, whose sum is σ = 122531534. Its totient is φ = 122531532.

The previous prime is 122531527. The next prime is 122531537. The reversal of 122531533 is 335135221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88868329 + 33663204 = 9427^2 + 5802^2 .

It is an emirp because it is prime and its reverse (335135221) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122531533 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122531498 and 122531507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122531537) 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, 61265766 + 61265767.

It is an arithmetic number, because the mean of its divisors is an integer number (61265767).

Almost surely, 2^122531533 is an apocalyptic number.

It is an amenable number.

122531533 is a deficient number, since it is larger than the sum of its proper divisors (1).

122531533 is an equidigital number, since it uses as much as digits as its factorization.

122531533 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2700, while the sum is 25.

The square root of 122531533 is about 11069.3962346643. The cubic root of 122531533 is about 496.6868046327.

Adding to 122531533 its reverse (335135221), we get a palindrome (457666754).

The spelling of 122531533 in words is "one hundred twenty-two million, five hundred thirty-one thousand, five hundred thirty-three".