181067013 has 12 divisors (see below), whose sum is σ = 261894828. Its totient is φ = 120548160.

The previous prime is 181066997. The next prime is 181067041. The reversal of 181067013 is 310760181.

181067013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 57790404 + 123276609 = 7602^2 + 11103^2 .

It is not a de Polignac number, because 181067013 - 2⁴ = 181066997 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (181067113) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6370 + ... + 20067.

It is an arithmetic number, because the mean of its divisors is an integer number (21824569).

Almost surely, 2^181067013 is an apocalyptic number.

It is an amenable number.

181067013 is a deficient number, since it is larger than the sum of its proper divisors (80827815).

181067013 is a wasteful number, since it uses less digits than its factorization.

181067013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27204 (or 27201 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 181067013 is about 13456.1143351266. The cubic root of 181067013 is about 565.7350841483.

The spelling of 181067013 in words is "one hundred eighty-one million, sixty-seven thousand, thirteen".