143463841 has 4 divisors (see below), whose sum is σ = 148410900. Its totient is φ = 138516784.

The previous prime is 143463823. The next prime is 143463847. The reversal of 143463841 is 148364341.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 148364341 = 409 ⋅362749.

It can be written as a sum of positive squares in 2 ways, for example, as 113870241 + 29593600 = 10671^2 + 5440^2 .

It is a cyclic number.

It is not a de Polignac number, because 143463841 - 2⁷ = 143463713 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 143463797 and 143463806.

It is not an unprimeable number, because it can be changed into a prime (143463847) 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, 2473486 + ... + 2473543.

It is an arithmetic number, because the mean of its divisors is an integer number (37102725).

Almost surely, 2^143463841 is an apocalyptic number.

It is an amenable number.

143463841 is a deficient number, since it is larger than the sum of its proper divisors (4947059).

143463841 is an equidigital number, since it uses as much as digits as its factorization.

143463841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4947058.

The product of its digits is 27648, while the sum is 34.

The square root of 143463841 is about 11977.6392081244. The cubic root of 143463841 is about 523.4969447558.

The spelling of 143463841 in words is "one hundred forty-three million, four hundred sixty-three thousand, eight hundred forty-one".