253441 has 4 divisors (see below), whose sum is σ = 266800. Its totient is φ = 240084.

The previous prime is 253439. The next prime is 253447. The reversal of 253441 is 144352.

253441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 253441 - 2¹ = 253439 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 13339 = 253441 / (2 + 5 + 3 + 4 + 4 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253447) 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, 6651 + ... + 6688.

It is an arithmetic number, because the mean of its divisors is an integer number (66700).

It is a Proth number, since it is equal to 495 ⋅ 2⁹ + 1 and 495 < 2⁹.

2²⁵³⁴⁴¹ is an apocalyptic number.

It is an amenable number.

253441 is a deficient number, since it is larger than the sum of its proper divisors (13359).

253441 is a wasteful number, since it uses less digits than its factorization.

253441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13358.

The product of its digits is 480, while the sum is 19.

The square root of 253441 is about 503.4292403109. The cubic root of 253441 is about 63.2837623806.

Adding to 253441 its reverse (144352), we get a palindrome (397793).

The spelling of 253441 in words is "two hundred fifty-three thousand, four hundred forty-one".