43003481 has 4 divisors (see below), whose sum is σ = 43645392. Its totient is φ = 42361572.

The previous prime is 43003469. The next prime is 43003529. The reversal of 43003481 is 18430034.

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 43003481 - 2¹⁴ = 42987097 is a prime.

It is a super-2 number, since 2×43003481² = 3698598756234722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43003381) 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, 320855 + ... + 320988.

It is an arithmetic number, because the mean of its divisors is an integer number (10911348).

Almost surely, 2^43003481 is an apocalyptic number.

It is an amenable number.

43003481 is a deficient number, since it is larger than the sum of its proper divisors (641911).

43003481 is an equidigital number, since it uses as much as digits as its factorization.

43003481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641910.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 43003481 is about 6557.7039426921. The cubic root of 43003481 is about 350.3492595267.

The spelling of 43003481 in words is "forty-three million, three thousand, four hundred eighty-one".