1863055 has 4 divisors (see below), whose sum is σ = 2235672. Its totient is φ = 1490440.

The previous prime is 1863053. The next prime is 1863067. The reversal of 1863055 is 5503681.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5503681 = 463 ⋅11887.

It is not a de Polignac number, because 1863055 - 2¹ = 1863053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1863053) 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, 186301 + ... + 186310.

It is an arithmetic number, because the mean of its divisors is an integer number (558918).

2^1863055 is an apocalyptic number.

1863055 is a deficient number, since it is larger than the sum of its proper divisors (372617).

1863055 is an equidigital number, since it uses as much as digits as its factorization.

1863055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372616.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 1863055 is about 1364.9377275173. The cubic root of 1863055 is about 123.0481887548.

The spelling of 1863055 in words is "one million, eight hundred sixty-three thousand, fifty-five".