122171493 has 8 divisors (see below), whose sum is σ = 164477248. Its totient is φ = 80656704.

The previous prime is 122171479. The next prime is 122171603. The reversal of 122171493 is 394171221.

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

It is not a de Polignac number, because 122171493 - 2⁶ = 122171429 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122171493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122171443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197380 + ... + 197997.

It is an arithmetic number, because the mean of its divisors is an integer number (20559656).

Almost surely, 2^122171493 is an apocalyptic number.

It is an amenable number.

122171493 is a deficient number, since it is larger than the sum of its proper divisors (42305755).

122171493 is a wasteful number, since it uses less digits than its factorization.

122171493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395483.

The product of its digits is 3024, while the sum is 30.

The square root of 122171493 is about 11053.1214143336. The cubic root of 122171493 is about 496.1998481973.

The spelling of 122171493 in words is "one hundred twenty-two million, one hundred seventy-one thousand, four hundred ninety-three".