1895145 has 16 divisors (see below), whose sum is σ = 3465600. Its totient is φ = 866304.

The previous prime is 1895141. The next prime is 1895167. The reversal of 1895145 is 5415981.

It is not a de Polignac number, because 1895145 - 2² = 1895141 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1895141) 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, 8920 + ... + 9129.

It is an arithmetic number, because the mean of its divisors is an integer number (216600).

2^1895145 is an apocalyptic number.

1895145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1895145 is a deficient number, since it is larger than the sum of its proper divisors (1570455).

1895145 is a wasteful number, since it uses less digits than its factorization.

1895145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18064.

The product of its digits is 7200, while the sum is 33.

The square root of 1895145 is about 1376.6426551578. The cubic root of 1895145 is about 123.7506478897.

The spelling of 1895145 in words is "one million, eight hundred ninety-five thousand, one hundred forty-five".