85303143 has 6 divisors (see below), whose sum is σ = 123215664. Its totient is φ = 56868756.

The previous prime is 85303111. The next prime is 85303151. The reversal of 85303143 is 34130358.

It is a happy number.

It is not a de Polignac number, because 85303143 - 2⁵ = 85303111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85303243) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4739055 + ... + 4739072.

It is an arithmetic number, because the mean of its divisors is an integer number (20535944).

Almost surely, 2^85303143 is an apocalyptic number.

85303143 is a deficient number, since it is larger than the sum of its proper divisors (37912521).

85303143 is a wasteful number, since it uses less digits than its factorization.

85303143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9478133 (or 9478130 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 85303143 is about 9235.9700627492. The cubic root of 85303143 is about 440.2050404554.

The spelling of 85303143 in words is "eighty-five million, three hundred three thousand, one hundred forty-three".