1995351 has 4 divisors (see below), whose sum is σ = 2660472. Its totient is φ = 1330232.

The previous prime is 1995349. The next prime is 1995353. The reversal of 1995351 is 1535991.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1535991 = 3 ⋅511997.

It is an interprime number because it is at equal distance from previous prime (1995349) and next prime (1995353).

It is a cyclic number.

It is not a de Polignac number, because 1995351 - 2¹ = 1995349 is a prime.

It is a super-2 number, since 2×1995351² = 7962851226402, which contains 22 as substring.

It is a D-number.

1995351 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1995353) 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, 332556 + ... + 332561.

It is an arithmetic number, because the mean of its divisors is an integer number (665118).

2^1995351 is an apocalyptic number.

1995351 is a deficient number, since it is larger than the sum of its proper divisors (665121).

1995351 is an equidigital number, since it uses as much as digits as its factorization.

1995351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665120.

The product of its digits is 6075, while the sum is 33.

The square root of 1995351 is about 1412.5689363709. The cubic root of 1995351 is about 125.8944063675.

It can be divided in two parts, 1995 and 351, that added together give a triangular number (2346 = T₆₈).

The spelling of 1995351 in words is "one million, nine hundred ninety-five thousand, three hundred fifty-one".