94143857 has 2 divisors, whose sum is σ = 94143858. Its totient is φ = 94143856.

The previous prime is 94143839. The next prime is 94143859. The reversal of 94143857 is 75834149.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61528336 + 32615521 = 7844^2 + 5711^2 .

It is a cyclic number.

It is not a de Polignac number, because 94143857 - 2²⁶ = 27034993 is a prime.

Together with 94143859, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (94143859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47071928 + 47071929.

It is an arithmetic number, because the mean of its divisors is an integer number (47071929).

Almost surely, 2^94143857 is an apocalyptic number.

It is an amenable number.

94143857 is a deficient number, since it is larger than the sum of its proper divisors (1).

94143857 is an equidigital number, since it uses as much as digits as its factorization.

94143857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 41.

The square root of 94143857 is about 9702.7757368704. The cubic root of 94143857 is about 454.9154244443.

The spelling of 94143857 in words is "ninety-four million, one hundred forty-three thousand, eight hundred fifty-seven".