1801443117 has 16 divisors (see below), whose sum is σ = 2484413568. Its totient is φ = 1160286720.

The previous prime is 1801443113. The next prime is 1801443121. The reversal of 1801443117 is 7113441081.

It is an interprime number because it is at equal distance from previous prime (1801443113) and next prime (1801443121).

It is not a de Polignac number, because 1801443117 - 2² = 1801443113 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1801443113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58428 + ... + 83765.

It is an arithmetic number, because the mean of its divisors is an integer number (155275848).

Almost surely, 2^1801443117 is an apocalyptic number.

It is an amenable number.

1801443117 is a deficient number, since it is larger than the sum of its proper divisors (682970451).

1801443117 is a wasteful number, since it uses less digits than its factorization.

1801443117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142340.

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 1801443117 is about 42443.4107606823. The cubic root of 1801443117 is about 1216.7653985389.

Adding to 1801443117 its reverse (7113441081), we get a palindrome (8914884198).

The spelling of 1801443117 in words is "one billion, eight hundred one million, four hundred forty-three thousand, one hundred seventeen".