143400241 has 4 divisors (see below), whose sum is σ = 144878692. Its totient is φ = 141921792.

The previous prime is 143400233. The next prime is 143400259. The reversal of 143400241 is 142004341.

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

It can be written as a sum of positive squares in 2 ways, for example, as 110670400 + 32729841 = 10520^2 + 5721^2 .

It is a cyclic number.

It is not a de Polignac number, because 143400241 - 2³ = 143400233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143400281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 739080 + ... + 739273.

It is an arithmetic number, because the mean of its divisors is an integer number (36219673).

Almost surely, 2^143400241 is an apocalyptic number.

It is an amenable number.

143400241 is a deficient number, since it is larger than the sum of its proper divisors (1478451).

143400241 is an equidigital number, since it uses as much as digits as its factorization.

143400241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1478450.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 143400241 is about 11974.9839665863. The cubic root of 143400241 is about 523.4195749074.

Adding to 143400241 its product of nonzero digits (384), we get a square (143400625 = 11975²).

Adding to 143400241 its reverse (142004341), we get a palindrome (285404582).

It can be divided in two parts, 143400 and 241, that added together give a square (143641 = 379²).

The spelling of 143400241 in words is "one hundred forty-three million, four hundred thousand, two hundred forty-one".