122015797 has 2 divisors, whose sum is σ = 122015798. Its totient is φ = 122015796.

The previous prime is 122015753. The next prime is 122015813. The reversal of 122015797 is 797510221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122014116 + 1681 = 11046^2 + 41^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122015797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122015197) 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, 61007898 + 61007899.

It is an arithmetic number, because the mean of its divisors is an integer number (61007899).

Almost surely, 2^122015797 is an apocalyptic number.

It is an amenable number.

122015797 is a deficient number, since it is larger than the sum of its proper divisors (1).

122015797 is an equidigital number, since it uses as much as digits as its factorization.

122015797 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8820, while the sum is 34.

The square root of 122015797 is about 11046.0760906306. The cubic root of 122015797 is about 495.9889720168.

The spelling of 122015797 in words is "one hundred twenty-two million, fifteen thousand, seven hundred ninety-seven".