181838200147 has 2 divisors, whose sum is σ = 181838200148. Its totient is φ = 181838200146.

The previous prime is 181838200139. The next prime is 181838200213. The reversal of 181838200147 is 741002838181.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 181838200147 - 2³ = 181838200139 is a prime.

It is not a weakly prime, because it can be changed into another prime (181838200447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90919100073 + 90919100074.

It is an arithmetic number, because the mean of its divisors is an integer number (90919100074).

Almost surely, 2^181838200147 is an apocalyptic number.

181838200147 is a deficient number, since it is larger than the sum of its proper divisors (1).

181838200147 is an equidigital number, since it uses as much as digits as its factorization.

181838200147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86016, while the sum is 43.

The spelling of 181838200147 in words is "one hundred eighty-one billion, eight hundred thirty-eight million, two hundred thousand, one hundred forty-seven".