122905867 has 6 divisors (see below), whose sum is σ = 142972188. Its totient is φ = 105347844.

The previous prime is 122905847. The next prime is 122905873. The reversal of 122905867 is 768509221.

It is not a de Polignac number, because 122905867 - 2¹¹ = 122903819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122905837) 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, 1254093 + ... + 1254190.

It is an arithmetic number, because the mean of its divisors is an integer number (23828698).

Almost surely, 2^122905867 is an apocalyptic number.

122905867 is a deficient number, since it is larger than the sum of its proper divisors (20066321).

122905867 is an equidigital number, since it uses as much as digits as its factorization.

122905867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2508297 (or 2508290 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 122905867 is about 11086.2918507497. The cubic root of 122905867 is about 497.1920833936.

The spelling of 122905867 in words is "one hundred twenty-two million, nine hundred five thousand, eight hundred sixty-seven".