71486143 has 8 divisors (see below), whose sum is σ = 72205056. Its totient is φ = 70771200.

The previous prime is 71486123. The next prime is 71486161. The reversal of 71486143 is 34168417.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71486143 is a prime.

It is a super-2 number, since 2×71486143² = 10220537282032898, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71486099 and 71486108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71486123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45255 + ... + 46807.

It is an arithmetic number, because the mean of its divisors is an integer number (9025632).

Almost surely, 2^71486143 is an apocalyptic number.

71486143 is a deficient number, since it is larger than the sum of its proper divisors (718913).

71486143 is a wasteful number, since it uses less digits than its factorization.

71486143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1985.

The product of its digits is 16128, while the sum is 34.

The square root of 71486143 is about 8454.9478413530. The cubic root of 71486143 is about 415.0247103881.

The spelling of 71486143 in words is "seventy-one million, four hundred eighty-six thousand, one hundred forty-three".