1800231 has 8 divisors (see below), whose sum is σ = 2526720. Its totient is φ = 1136952.

The previous prime is 1800221. The next prime is 1800257. The reversal of 1800231 is 1320081.

It is a happy number.

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

It is not a de Polignac number, because 1800231 - 2⁵ = 1800199 is a prime.

It is a super-2 number, since 2×1800231² = 6481663306722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1800231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1800221) 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, 15735 + ... + 15848.

It is an arithmetic number, because the mean of its divisors is an integer number (315840).

2^1800231 is an apocalyptic number.

1800231 is a deficient number, since it is larger than the sum of its proper divisors (726489).

1800231 is a wasteful number, since it uses less digits than its factorization.

1800231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31605.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1800231 is about 1341.7268723552. The cubic root of 1800231 is about 121.6492433506.

The spelling of 1800231 in words is "one million, eight hundred thousand, two hundred thirty-one".