19882147 has 2 divisors, whose sum is σ = 19882148. Its totient is φ = 19882146.

The previous prime is 19882141. The next prime is 19882199. The reversal of 19882147 is 74128891.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 19882147 - 2²³ = 11493539 is a prime.

It is not a weakly prime, because it can be changed into another prime (19882141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9941073 + 9941074.

It is an arithmetic number, because the mean of its divisors is an integer number (9941074).

Almost surely, 2^19882147 is an apocalyptic number.

19882147 is a deficient number, since it is larger than the sum of its proper divisors (1).

19882147 is an equidigital number, since it uses as much as digits as its factorization.

19882147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32256, while the sum is 40.

The square root of 19882147 is about 4458.9401207013. The cubic root of 19882147 is about 270.9075405230.

The spelling of 19882147 in words is "nineteen million, eight hundred eighty-two thousand, one hundred forty-seven".