1801801227 has 8 divisors (see below), whose sum is σ = 2405682064. Its totient is φ = 1199560608.

The previous prime is 1801801207. The next prime is 1801801231. The reversal of 1801801227 is 7221081081.

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 1801801227 - 2⁸ = 1801800971 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1801801194 and 1801801203.

It is not an unprimeable number, because it can be changed into a prime (1801801207) 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, 407488 + ... + 411885.

It is an arithmetic number, because the mean of its divisors is an integer number (300710258).

Almost surely, 2^1801801227 is an apocalyptic number.

1801801227 is a deficient number, since it is larger than the sum of its proper divisors (603880837).

1801801227 is an equidigital number, since it uses as much as digits as its factorization.

1801801227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 820109.

The product of its (nonzero) digits is 1792, while the sum is 30.

The square root of 1801801227 is about 42447.6292270840. The cubic root of 1801801227 is about 1216.8460203808.

The spelling of 1801801227 in words is "one billion, eight hundred one million, eight hundred one thousand, two hundred twenty-seven".