75681271 has 4 divisors (see below), whose sum is σ = 78291000. Its totient is φ = 73071544.

The previous prime is 75681259. The next prime is 75681337. The reversal of 75681271 is 17218657.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 75681271 - 2¹⁷ = 75550199 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 75681271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75681371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1304821 + ... + 1304878.

It is an arithmetic number, because the mean of its divisors is an integer number (19572750).

Almost surely, 2^75681271 is an apocalyptic number.

75681271 is a deficient number, since it is larger than the sum of its proper divisors (2609729).

75681271 is a wasteful number, since it uses less digits than its factorization.

75681271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2609728.

The product of its digits is 23520, while the sum is 37.

The square root of 75681271 is about 8699.4983188687. The cubic root of 75681271 is about 422.9893884485.

The spelling of 75681271 in words is "seventy-five million, six hundred eighty-one thousand, two hundred seventy-one".