122185091 has 8 divisors (see below), whose sum is σ = 144455520. Its totient is φ = 101118528.

The previous prime is 122185081. The next prime is 122185097. The reversal of 122185091 is 190581221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 122185091 - 2⁶ = 122185027 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122185097) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 300746 + ... + 301151.

It is an arithmetic number, because the mean of its divisors is an integer number (18056940).

Almost surely, 2^122185091 is an apocalyptic number.

122185091 is a deficient number, since it is larger than the sum of its proper divisors (22270429).

122185091 is an equidigital number, since it uses as much as digits as its factorization.

122185091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601933.

The product of its (nonzero) digits is 1440, while the sum is 29.

The square root of 122185091 is about 11053.7365175763. The cubic root of 122185091 is about 496.2182569522.

The spelling of 122185091 in words is "one hundred twenty-two million, one hundred eighty-five thousand, ninety-one".