1995051 has 4 divisors (see below), whose sum is σ = 2660072. Its totient is φ = 1330032.

The previous prime is 1995031. The next prime is 1995061. The reversal of 1995051 is 1505991.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1505991 = 3 ⋅501997.

It is not a de Polignac number, because 1995051 - 2¹⁵ = 1962283 is a prime.

It is a D-number.

It is a Duffinian number.

1995051 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1995011) 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, 332506 + ... + 332511.

It is an arithmetic number, because the mean of its divisors is an integer number (665018).

2^1995051 is an apocalyptic number.

1995051 is a deficient number, since it is larger than the sum of its proper divisors (665021).

1995051 is an equidigital number, since it uses as much as digits as its factorization.

1995051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665020.

The product of its (nonzero) digits is 2025, while the sum is 30.

The square root of 1995051 is about 1412.4627428715. The cubic root of 1995051 is about 125.8880966648. Note that the first 3 decimals are identical.

The spelling of 1995051 in words is "one million, nine hundred ninety-five thousand, fifty-one".