71143083 has 16 divisors (see below), whose sum is σ = 114979200. Its totient is φ = 43116840.

The previous prime is 71143073. The next prime is 71143139. The reversal of 71143083 is 38034117.

It is not a de Polignac number, because 71143083 - 2⁴ = 71143067 is a prime.

It is a super-2 number, since 2×71143083² = 10122676517489778, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (71143073) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119473 + ... + 120066.

It is an arithmetic number, because the mean of its divisors is an integer number (7186200).

Almost surely, 2^71143083 is an apocalyptic number.

71143083 is a deficient number, since it is larger than the sum of its proper divisors (43836117).

71143083 is a wasteful number, since it uses less digits than its factorization.

71143083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239559 (or 239553 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 71143083 is about 8434.6359138969. The cubic root of 71143083 is about 414.3597482153.

The spelling of 71143083 in words is "seventy-one million, one hundred forty-three thousand, eighty-three".