1801095 has 16 divisors (see below), whose sum is σ = 2903040. Its totient is φ = 953504.

The previous prime is 1801091. The next prime is 1801109. The reversal of 1801095 is 5901081.

It is a cyclic number.

It is not a de Polignac number, because 1801095 - 2² = 1801091 is a prime.

It is an Ulam number.

It is a plaindrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1801091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2146 + ... + 2864.

It is an arithmetic number, because the mean of its divisors is an integer number (181440).

2^1801095 is an apocalyptic number.

1801095 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1801095 is a deficient number, since it is larger than the sum of its proper divisors (1101945).

1801095 is a wasteful number, since it uses less digits than its factorization.

1801095 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894.

The product of its (nonzero) digits is 360, while the sum is 24.

The square root of 1801095 is about 1342.0488068621. The cubic root of 1801095 is about 121.6687016194.

It can be divided in two parts, 180 and 1095, that added together give a triangular number (1275 = T₅₀).

The spelling of 1801095 in words is "one million, eight hundred one thousand, ninety-five".