247141943 has 2 divisors, whose sum is σ = 247141944. Its totient is φ = 247141942.

The previous prime is 247141897. The next prime is 247141957. The reversal of 247141943 is 349141742.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 247141943 - 2¹⁰ = 247140919 is a prime.

It is a super-2 number, since 2×247141943² = 122158279979630498, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (247141963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123570971 + 123570972.

It is an arithmetic number, because the mean of its divisors is an integer number (123570972).

Almost surely, 2^247141943 is an apocalyptic number.

247141943 is a deficient number, since it is larger than the sum of its proper divisors (1).

247141943 is an equidigital number, since it uses as much as digits as its factorization.

247141943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 35.

The square root of 247141943 is about 15720.7488053209. The cubic root of 247141943 is about 627.5507008128.

The spelling of 247141943 in words is "two hundred forty-seven million, one hundred forty-one thousand, nine hundred forty-three".