122145533 has 2 divisors, whose sum is σ = 122145534. Its totient is φ = 122145532.

The previous prime is 122145481. The next prime is 122145557. The reversal of 122145533 is 335541221.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 112423609 + 9721924 = 10603^2 + 3118^2 .

It is a cyclic number.

It is not a de Polignac number, because 122145533 - 2¹⁸ = 121883389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122145563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61072766 + 61072767.

It is an arithmetic number, because the mean of its divisors is an integer number (61072767).

Almost surely, 2^122145533 is an apocalyptic number.

It is an amenable number.

122145533 is a deficient number, since it is larger than the sum of its proper divisors (1).

122145533 is an equidigital number, since it uses as much as digits as its factorization.

122145533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3600, while the sum is 26.

The square root of 122145533 is about 11051.9470230363. The cubic root of 122145533 is about 496.1647001710.

Adding to 122145533 its reverse (335541221), we get a palindrome (457686754).

The spelling of 122145533 in words is "one hundred twenty-two million, one hundred forty-five thousand, five hundred thirty-three".