1903085 has 8 divisors (see below), whose sum is σ = 2294136. Its totient is φ = 1515520.

The previous prime is 1903081. The next prime is 1903091. The reversal of 1903085 is 5803091.

Added to its reverse (5803091) it gives a square (7706176 = 2776²).

It can be written as a sum of positive squares in 4 ways, for example, as 635209 + 1267876 = 797^2 + 1126^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1903085 - 2² = 1903081 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1903081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 545 + ... + 2025.

It is an arithmetic number, because the mean of its divisors is an integer number (286767).

2^1903085 is an apocalyptic number.

It is an amenable number.

1903085 is a deficient number, since it is larger than the sum of its proper divisors (391051).

1903085 is a wasteful number, since it uses less digits than its factorization.

1903085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1743.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 1903085 is about 1379.5234684484. The cubic root of 1903085 is about 123.9232311847.

Adding to 1903085 its reverse (5803091), we get a square (7706176 = 2776²).

The spelling of 1903085 in words is "one million, nine hundred three thousand, eighty-five".