71141565 has 64 divisors (see below), whose sum is σ = 130977792. Its totient is φ = 32659200.

The previous prime is 71141533. The next prime is 71141569. The reversal of 71141565 is 56514117.

It is not a de Polignac number, because 71141565 - 2⁵ = 71141533 is a prime.

It is a super-2 number, since 2×71141565² = 10122244541298450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71141569) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 262380 + ... + 262650.

It is an arithmetic number, because the mean of its divisors is an integer number (2046528).

Almost surely, 2^71141565 is an apocalyptic number.

It is an amenable number.

71141565 is a deficient number, since it is larger than the sum of its proper divisors (59836227).

71141565 is a wasteful number, since it uses less digits than its factorization.

71141565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370.

The product of its digits is 4200, while the sum is 30.

The square root of 71141565 is about 8434.5459273158. The cubic root of 71141565 is about 414.3568010908.

The spelling of 71141565 in words is "seventy-one million, one hundred forty-one thousand, five hundred sixty-five".