71268565 has 8 divisors (see below), whose sum is σ = 85664160. Its totient is φ = 56920272.

The previous prime is 71268523. The next prime is 71268581. The reversal of 71268565 is 56586217.

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-71268565 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8419 + ... + 14608.

It is an arithmetic number, because the mean of its divisors is an integer number (10708020).

Almost surely, 2^71268565 is an apocalyptic number.

It is an amenable number.

71268565 is a deficient number, since it is larger than the sum of its proper divisors (14395595).

71268565 is a wasteful number, since it uses less digits than its factorization.

71268565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23651.

The product of its digits is 100800, while the sum is 40.

The square root of 71268565 is about 8442.0711321334. The cubic root of 71268565 is about 414.6032207043.

The spelling of 71268565 in words is "seventy-one million, two hundred sixty-eight thousand, five hundred sixty-five".