1995612 has 12 divisors (see below), whose sum is σ = 4656456. Its totient is φ = 665200.

The previous prime is 1995611. The next prime is 1995629. The reversal of 1995612 is 2165991.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1995611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83139 + ... + 83162.

It is an arithmetic number, because the mean of its divisors is an integer number (388038).

2^1995612 is an apocalyptic number.

1995612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1995612 is an abundant number, since it is smaller than the sum of its proper divisors (2660844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1995612 is a wasteful number, since it uses less digits than its factorization.

1995612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166308 (or 166306 counting only the distinct ones).

The product of its digits is 4860, while the sum is 33.

The square root of 1995612 is about 1412.6613182217. The cubic root of 1995612 is about 125.8998952944.

The spelling of 1995612 in words is "one million, nine hundred ninety-five thousand, six hundred twelve".