75091 has 4 divisors (see below), whose sum is σ = 76384. Its totient is φ = 73800.

The previous prime is 75083. The next prime is 75109. The reversal of 75091 is 19057.

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 75091 - 2³ = 75083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75011) 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, 555 + ... + 676.

It is an arithmetic number, because the mean of its divisors is an integer number (19096).

2⁷⁵⁰⁹¹ is an apocalyptic number.

75091 is a deficient number, since it is larger than the sum of its proper divisors (1293).

75091 is a wasteful number, since it uses less digits than its factorization.

75091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1292.

The product of its (nonzero) digits is 315, while the sum is 22.

The square root of 75091 is about 274.0273708957. The cubic root of 75091 is about 42.1886824543.

It can be divided in two parts, 750 and 91, that added together give a square (841 = 29²).

The spelling of 75091 in words is "seventy-five thousand, ninety-one".