70008143 has 2 divisors, whose sum is σ = 70008144. Its totient is φ = 70008142.

The previous prime is 70008109. The next prime is 70008209. The reversal of 70008143 is 34180007.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (34180007) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70008143 - 2²⁰ = 68959567 is a prime.

It is a super-2 number, since 2×70008143² = 9802280172616898, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70028143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35004071 + 35004072.

It is an arithmetic number, because the mean of its divisors is an integer number (35004072).

Almost surely, 2^70008143 is an apocalyptic number.

70008143 is a deficient number, since it is larger than the sum of its proper divisors (1).

70008143 is an equidigital number, since it uses as much as digits as its factorization.

70008143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 70008143 is about 8367.0868885174. The cubic root of 70008143 is about 412.1445101356.

The spelling of 70008143 in words is "seventy million, eight thousand, one hundred forty-three".