47247143 has 2 divisors, whose sum is σ = 47247144. Its totient is φ = 47247142.

The previous prime is 47247121. The next prime is 47247157. The reversal of 47247143 is 34174274.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47247143 - 2²⁰ = 46198567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47247943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23623571 + 23623572.

It is an arithmetic number, because the mean of its divisors is an integer number (23623572).

Almost surely, 2^47247143 is an apocalyptic number.

47247143 is a deficient number, since it is larger than the sum of its proper divisors (1).

47247143 is an equidigital number, since it uses as much as digits as its factorization.

47247143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18816, while the sum is 32.

The square root of 47247143 is about 6873.6557231214. The cubic root of 47247143 is about 361.5140529435.

The spelling of 47247143 in words is "forty-seven million, two hundred forty-seven thousand, one hundred forty-three".