122502491 has 2 divisors, whose sum is σ = 122502492. Its totient is φ = 122502490.

The previous prime is 122502433. The next prime is 122502503. The reversal of 122502491 is 194205221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122502491 - 2⁶ = 122502427 is a prime.

It is a super-3 number, since 3×122502491³ (a number of 25 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122502491.

It is not a weakly prime, because it can be changed into another prime (122502691) 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, 61251245 + 61251246.

It is an arithmetic number, because the mean of its divisors is an integer number (61251246).

Almost surely, 2^122502491 is an apocalyptic number.

122502491 is a deficient number, since it is larger than the sum of its proper divisors (1).

122502491 is an equidigital number, since it uses as much as digits as its factorization.

122502491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 122502491 is about 11068.0843419266. The cubic root of 122502491 is about 496.6475605360.

It can be divided in two parts, 12250 and 2491, that added together give a palindrome (14741).

The spelling of 122502491 in words is "one hundred twenty-two million, five hundred two thousand, four hundred ninety-one".