143803481 has 4 divisors (see below), whose sum is σ = 147147792. Its totient is φ = 140459172.

The previous prime is 143803477. The next prime is 143803483. The reversal of 143803481 is 184308341.

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 a cyclic number.

It is not a de Polignac number, because 143803481 - 2² = 143803477 is a prime.

It is a super-2 number, since 2×143803481² = 41358882295434722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143803483) 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, 1672091 + ... + 1672176.

It is an arithmetic number, because the mean of its divisors is an integer number (36786948).

Almost surely, 2^143803481 is an apocalyptic number.

It is an amenable number.

143803481 is a deficient number, since it is larger than the sum of its proper divisors (3344311).

143803481 is an equidigital number, since it uses as much as digits as its factorization.

143803481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3344310.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 143803481 is about 11991.8089127537. The cubic root of 143803481 is about 523.9097325716.

The spelling of 143803481 in words is "one hundred forty-three million, eight hundred three thousand, four hundred eighty-one".