1955895 has 16 divisors (see below), whose sum is σ = 3169152. Its totient is φ = 1029920.

The previous prime is 1955893. The next prime is 1955939. The reversal of 1955895 is 5985591.

It is a happy number.

It is not a de Polignac number, because 1955895 - 2¹ = 1955893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1955893) 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 15 ways as a sum of consecutive naturals, for example, 460 + ... + 2030.

It is an arithmetic number, because the mean of its divisors is an integer number (198072).

2^1955895 is an apocalyptic number.

1955895 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1955895 is a deficient number, since it is larger than the sum of its proper divisors (1213257).

1955895 is a wasteful number, since it uses less digits than its factorization.

1955895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1662.

The product of its digits is 81000, while the sum is 42.

The square root of 1955895 is about 1398.5331601360. The cubic root of 1955895 is about 125.0590654191.

It can be divided in two parts, 1955 and 895, that added together give a triangular number (2850 = T₇₅).

The spelling of 1955895 in words is "one million, nine hundred fifty-five thousand, eight hundred ninety-five".