97085143 has 2 divisors, whose sum is σ = 97085144. Its totient is φ = 97085142.

The previous prime is 97085141. The next prime is 97085161. The reversal of 97085143 is 34158079.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 97085143 - 2¹ = 97085141 is a prime.

It is a super-4 number, since 4×97085143⁴ (a number of 33 digits) contains 4444 as substring.

Together with 97085141, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97085141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48542571 + 48542572.

It is an arithmetic number, because the mean of its divisors is an integer number (48542572).

Almost surely, 2^97085143 is an apocalyptic number.

97085143 is a deficient number, since it is larger than the sum of its proper divisors (1).

97085143 is an equidigital number, since it uses as much as digits as its factorization.

97085143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 97085143 is about 9853.1793346107. The cubic root of 97085143 is about 459.6044851697.

The spelling of 97085143 in words is "ninety-seven million, eighty-five thousand, one hundred forty-three".