122899797 has 6 divisors (see below), whose sum is σ = 177521942. Its totient is φ = 81933192.

The previous prime is 122899759. The next prime is 122899801. The reversal of 122899797 is 797998221.

It can be written as a sum of positive squares in only one way, i.e., 83887281 + 39012516 = 9159^2 + 6246^2 .

It is not a de Polignac number, because 122899797 - 2⁷ = 122899669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122899727) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6827758 + ... + 6827775.

Almost surely, 2^122899797 is an apocalyptic number.

It is an amenable number.

122899797 is a deficient number, since it is larger than the sum of its proper divisors (54622145).

122899797 is a wasteful number, since it uses less digits than its factorization.

122899797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13655539 (or 13655536 counting only the distinct ones).

The product of its digits is 1143072, while the sum is 54.

The square root of 122899797 is about 11086.0180858593. The cubic root of 122899797 is about 497.1838982524.

It can be divided in two parts, 1228 and 99797, that added together give a triangular number (101025 = T₄₄₉).

The spelling of 122899797 in words is "one hundred twenty-two million, eight hundred ninety-nine thousand, seven hundred ninety-seven".