122429187 has 12 divisors (see below), whose sum is σ = 177226920. Its totient is φ = 81441888.

The previous prime is 122429183. The next prime is 122429191. The reversal of 122429187 is 781924221.

It is an interprime number because it is at equal distance from previous prime (122429183) and next prime (122429191).

It is not a de Polignac number, because 122429187 - 2² = 122429183 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122429183) 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 in 11 ways as a sum of consecutive naturals, for example, 10362 + ... + 18767.

It is an arithmetic number, because the mean of its divisors is an integer number (14768910).

Almost surely, 2^122429187 is an apocalyptic number.

122429187 is a deficient number, since it is larger than the sum of its proper divisors (54797733).

122429187 is a wasteful number, since it uses less digits than its factorization.

122429187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29602 (or 29599 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The square root of 122429187 is about 11064.7723428907. The cubic root of 122429187 is about 496.5484781512.

The spelling of 122429187 in words is "one hundred twenty-two million, four hundred twenty-nine thousand, one hundred eighty-seven".