1836201 has 4 divisors (see below), whose sum is σ = 2448272. Its totient is φ = 1224132.

The previous prime is 1836157. The next prime is 1836239. The reversal of 1836201 is 1026381.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1836201 - 2⁷ = 1836073 is a prime.

It is a super-2 number, since 2×1836201² = 6743268224802, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1836271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 306031 + ... + 306036.

It is an arithmetic number, because the mean of its divisors is an integer number (612068).

2^1836201 is an apocalyptic number.

It is an amenable number.

1836201 is a deficient number, since it is larger than the sum of its proper divisors (612071).

1836201 is an equidigital number, since it uses as much as digits as its factorization.

1836201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612070.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 1836201 is about 1355.0649430931. The cubic root of 1836201 is about 122.4541213731.

The spelling of 1836201 in words is "one million, eight hundred thirty-six thousand, two hundred one".