2195912 has 8 divisors (see below), whose sum is σ = 4117350. Its totient is φ = 1097952.

The previous prime is 2195911. The next prime is 2195917.

2195912 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 2114116 + 81796 = 1454^2 + 286^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (2195911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137237 + ... + 137252.

2^2195912 is an apocalyptic number.

It is an amenable number.

2195912 is a deficient number, since it is larger than the sum of its proper divisors (1921438).

2195912 is a wasteful number, since it uses less digits than its factorization.

2195912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274495 (or 274491 counting only the distinct ones).

The product of its digits is 1620, while the sum is 29.

The square root of 2195912 is about 1481.8609921312. The cubic root of 2195912 is about 129.9785368905.

The spelling of 2195912 in words is "two million, one hundred ninety-five thousand, nine hundred twelve".