71241565 has 8 divisors (see below), whose sum is σ = 88247808. Its totient is φ = 55154640.

The previous prime is 71241551. The next prime is 71241589. The reversal of 71241565 is 56514217.

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

It is not a de Polignac number, because 71241565 - 2¹³ = 71233373 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a zygodrome in base 3.

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, 229657 + ... + 229966.

It is an arithmetic number, because the mean of its divisors is an integer number (11030976).

Almost surely, 2^71241565 is an apocalyptic number.

It is an amenable number.

71241565 is a deficient number, since it is larger than the sum of its proper divisors (17006243).

71241565 is a wasteful number, since it uses less digits than its factorization.

71241565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459659.

The product of its digits is 8400, while the sum is 31.

The square root of 71241565 is about 8440.4718470000. The cubic root of 71241565 is about 414.5508568002.

The spelling of 71241565 in words is "seventy-one million, two hundred forty-one thousand, five hundred sixty-five".