181067113 has 2 divisors, whose sum is σ = 181067114. Its totient is φ = 181067112.

The previous prime is 181067071. The next prime is 181067123. The reversal of 181067113 is 311760181.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97673689 + 83393424 = 9883^2 + 9132^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-181067113 is a prime.

It is not a weakly prime, because it can be changed into another prime (181067123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90533556 + 90533557.

It is an arithmetic number, because the mean of its divisors is an integer number (90533557).

Almost surely, 2^181067113 is an apocalyptic number.

It is an amenable number.

181067113 is a deficient number, since it is larger than the sum of its proper divisors (1).

181067113 is an equidigital number, since it uses as much as digits as its factorization.

181067113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 181067113 is about 13456.1180509090. The cubic root of 181067113 is about 565.7351882967.

The spelling of 181067113 in words is "one hundred eighty-one million, sixty-seven thousand, one hundred thirteen".