1810013 has 2 divisors, whose sum is σ = 1810014. Its totient is φ = 1810012.

The previous prime is 1810001. The next prime is 1810033. The reversal of 1810013 is 3100181.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1776889 + 33124 = 1333^2 + 182^2 .

It is a cyclic number.

It is not a de Polignac number, because 1810013 - 2⁶ = 1809949 is a prime.

It is a super-2 number, since 2×1810013² = 6552294120338, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1810013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1810033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 905006 + 905007.

It is an arithmetic number, because the mean of its divisors is an integer number (905007).

2^1810013 is an apocalyptic number.

It is an amenable number.

1810013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1810013 is an equidigital number, since it uses as much as digits as its factorization.

1810013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 1810013 is about 1345.3672361106. The cubic root of 1810013 is about 121.8691825406.

Adding to 1810013 its reverse (3100181), we get a palindrome (4910194).

The spelling of 1810013 in words is "one million, eight hundred ten thousand, thirteen".