75351 has 4 divisors (see below), whose sum is σ = 100472. Its totient is φ = 50232.

The previous prime is 75347. The next prime is 75353. The reversal of 75351 is 15357.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15357 = 3 ⋅5119.

It is not a de Polignac number, because 75351 - 2² = 75347 is a prime.

It is a D-number.

It is the 275-th Hogben number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75353) by changing a digit.

It is a nontrivial repunit in base 274.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12556 + ... + 12561.

It is an arithmetic number, because the mean of its divisors is an integer number (25118).

2⁷⁵³⁵¹ is an apocalyptic number.

75351 is a deficient number, since it is larger than the sum of its proper divisors (25121).

75351 is a wasteful number, since it uses less digits than its factorization.

75351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25120.

The product of its digits is 525, while the sum is 21.

The square root of 75351 is about 274.5013661168. The cubic root of 75351 is about 42.2373186501.

The spelling of 75351 in words is "seventy-five thousand, three hundred fifty-one".