122031909 has 12 divisors (see below), whose sum is σ = 176432256. Its totient is φ = 81278952.

The previous prime is 122031869. The next prime is 122031941. The reversal of 122031909 is 909130221.

It is not a de Polignac number, because 122031909 - 2¹¹ = 122029861 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122031989) 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, 4972 + ... + 16394.

It is an arithmetic number, because the mean of its divisors is an integer number (14702688).

Almost surely, 2^122031909 is an apocalyptic number.

It is an amenable number.

122031909 is a deficient number, since it is larger than the sum of its proper divisors (54400347).

122031909 is a wasteful number, since it uses less digits than its factorization.

122031909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12616 (or 12613 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 122031909 is about 11046.8053753110. The cubic root of 122031909 is about 496.0108025851.

The spelling of 122031909 in words is "one hundred twenty-two million, thirty-one thousand, nine hundred nine".