247161359 has 2 divisors, whose sum is σ = 247161360. Its totient is φ = 247161358.

The previous prime is 247161311. The next prime is 247161373. The reversal of 247161359 is 953161742.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-247161359 is a prime.

It is a super-2 number, since 2×247161359² = 122177474765453762, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (247161559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123580679 + 123580680.

It is an arithmetic number, because the mean of its divisors is an integer number (123580680).

Almost surely, 2^247161359 is an apocalyptic number.

247161359 is a deficient number, since it is larger than the sum of its proper divisors (1).

247161359 is an equidigital number, since it uses as much as digits as its factorization.

247161359 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45360, while the sum is 38.

The square root of 247161359 is about 15721.3663210295. The cubic root of 247161359 is about 627.5671342912.

The spelling of 247161359 in words is "two hundred forty-seven million, one hundred sixty-one thousand, three hundred fifty-nine".