75441 has 4 divisors (see below), whose sum is σ = 100592. Its totient is φ = 50292.

The previous prime is 75437. The next prime is 75479. The reversal of 75441 is 14457.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 75441 - 2² = 75437 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

75441 is a lucky number.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (75401) 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, 12571 + ... + 12576.

It is an arithmetic number, because the mean of its divisors is an integer number (25148).

2⁷⁵⁴⁴¹ is an apocalyptic number.

It is an amenable number.

75441 is a deficient number, since it is larger than the sum of its proper divisors (25151).

75441 is a wasteful number, since it uses less digits than its factorization.

75441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25150.

The product of its digits is 560, while the sum is 21.

The square root of 75441 is about 274.6652508054. The cubic root of 75441 is about 42.2541281869.

Adding to 75441 its reverse (14457), we get a palindrome (89898).

The spelling of 75441 in words is "seventy-five thousand, four hundred forty-one".