180027899 has 2 divisors, whose sum is σ = 180027900. Its totient is φ = 180027898.

The previous prime is 180027893. The next prime is 180027917. The reversal of 180027899 is 998720081.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-180027899 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (180027893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90013949 + 90013950.

It is an arithmetic number, because the mean of its divisors is an integer number (90013950).

Almost surely, 2^180027899 is an apocalyptic number.

180027899 is a deficient number, since it is larger than the sum of its proper divisors (1).

180027899 is an equidigital number, since it uses as much as digits as its factorization.

180027899 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 44.

The square root of 180027899 is about 13417.4475590553. The cubic root of 180027899 is about 564.6507868929.

The spelling of 180027899 in words is "one hundred eighty million, twenty-seven thousand, eight hundred ninety-nine".