47130287 has 2 divisors, whose sum is σ = 47130288. Its totient is φ = 47130286.

The previous prime is 47130283. The next prime is 47130353. The reversal of 47130287 is 78203174.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47130287 - 2² = 47130283 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47130283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23565143 + 23565144.

It is an arithmetic number, because the mean of its divisors is an integer number (23565144).

Almost surely, 2^47130287 is an apocalyptic number.

47130287 is a deficient number, since it is larger than the sum of its proper divisors (1).

47130287 is an equidigital number, since it uses as much as digits as its factorization.

47130287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 47130287 is about 6865.1501804403. The cubic root of 47130287 is about 361.2157635686.

The spelling of 47130287 in words is "forty-seven million, one hundred thirty thousand, two hundred eighty-seven".