122698989 has 32 divisors (see below), whose sum is σ = 212000000. Its totient is φ = 70108416.

The previous prime is 122698987. The next prime is 122698991. The reversal of 122698989 is 989896221.

It is an interprime number because it is at equal distance from previous prime (122698987) and next prime (122698991).

It is not a de Polignac number, because 122698989 - 2¹ = 122698987 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 (122698987) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2637 + ... + 15885.

It is an arithmetic number, because the mean of its divisors is an integer number (6625000).

Almost surely, 2^122698989 is an apocalyptic number.

It is an amenable number.

122698989 is a deficient number, since it is larger than the sum of its proper divisors (89301011).

122698989 is an equidigital number, since it uses as much as digits as its factorization.

122698989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13279 (or 13259 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 54.

The square root of 122698989 is about 11076.9575696578. The cubic root of 122698989 is about 496.9129649880.

The spelling of 122698989 in words is "one hundred twenty-two million, six hundred ninety-eight thousand, nine hundred eighty-nine".