122345507 has 2 divisors, whose sum is σ = 122345508. Its totient is φ = 122345506.

The previous prime is 122345479. The next prime is 122345537. The reversal of 122345507 is 705543221.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (705543221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122345507 - 2¹⁰ = 122344483 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122345507.

It is not a weakly prime, because it can be changed into another prime (122345537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61172753 + 61172754.

It is an arithmetic number, because the mean of its divisors is an integer number (61172754).

Almost surely, 2^122345507 is an apocalyptic number.

122345507 is a deficient number, since it is larger than the sum of its proper divisors (1).

122345507 is an equidigital number, since it uses as much as digits as its factorization.

122345507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 122345507 is about 11060.9903263677. The cubic root of 122345507 is about 496.4353225441.

Adding to 122345507 its reverse (705543221), we get a palindrome (827888728).

The spelling of 122345507 in words is "one hundred twenty-two million, three hundred forty-five thousand, five hundred seven".