1995215 has 4 divisors (see below), whose sum is σ = 2394264. Its totient is φ = 1596168.

The previous prime is 1995211. The next prime is 1995221. The reversal of 1995215 is 5125991.

1995215 is nontrivially palindromic in base 2.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1995215 - 2² = 1995211 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1995211) 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, 199517 + ... + 199526.

It is an arithmetic number, because the mean of its divisors is an integer number (598566).

2^1995215 is an apocalyptic number.

1995215 is a deficient number, since it is larger than the sum of its proper divisors (399049).

1995215 is an equidigital number, since it uses as much as digits as its factorization.

1995215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399048.

The product of its digits is 4050, while the sum is 32.

The square root of 1995215 is about 1412.5207963071. The cubic root of 1995215 is about 125.8915460473.

The spelling of 1995215 in words is "one million, nine hundred ninety-five thousand, two hundred fifteen".