71350561 has 8 divisors (see below), whose sum is σ = 75043584. Its totient is φ = 67744560.

The previous prime is 71350549. The next prime is 71350571. The reversal of 71350561 is 16505317.

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

It is a cyclic number.

It is not a de Polignac number, because 71350561 - 2⁹ = 71350049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71350501) 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, 20071 + ... + 23356.

It is an arithmetic number, because the mean of its divisors is an integer number (9380448).

Almost surely, 2^71350561 is an apocalyptic number.

It is an amenable number.

71350561 is a deficient number, since it is larger than the sum of its proper divisors (3693023).

71350561 is a wasteful number, since it uses less digits than its factorization.

71350561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43511.

The product of its (nonzero) digits is 3150, while the sum is 28.

The square root of 71350561 is about 8446.9261272962. The cubic root of 71350561 is about 414.7621630392.

Adding to 71350561 its reverse (16505317), we get a palindrome (87855878).

The spelling of 71350561 in words is "seventy-one million, three hundred fifty thousand, five hundred sixty-one".