1995122 has 8 divisors (see below), whose sum is σ = 3020976.
Its totient is φ = 988132.
The previous prime is 1995121. The next prime is 1995139. The reversal of 1995122 is 2215991.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not an unprimeable number, because it can be changed into a prime (1995121) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4448 + ... + 4875.
It is an arithmetic number, because the mean of its divisors is an integer number (377622).
21995122 is an apocalyptic number.
1995122 is a deficient number, since it is larger than the sum of its proper divisors (1025854).
1995122 is a wasteful number, since it uses less digits than its factorization.
1995122 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9432.
The product of its digits is 1620, while the sum is 29.
The square root of 1995122 is about 1412.4878760542.
The cubic root of 1995122 is about 125.8895900182.
The spelling of 1995122 in words is "one million, nine hundred ninety-five thousand, one hundred twenty-two".