73543043 has 8 divisors (see below), whose sum is σ = 86947680. Its totient is φ = 60863040.

The previous prime is 73543031. The next prime is 73543061. The reversal of 73543043 is 34034537.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 73543043 - 2²² = 69348739 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 73542997 and 73543015.

It is not an unprimeable number, because it can be changed into a prime (73543543) 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 7 ways as a sum of consecutive naturals, for example, 180938 + ... + 181343.

It is an arithmetic number, because the mean of its divisors is an integer number (10868460).

Almost surely, 2^73543043 is an apocalyptic number.

73543043 is a deficient number, since it is larger than the sum of its proper divisors (13404637).

73543043 is a wasteful number, since it uses less digits than its factorization.

73543043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362317.

The product of its (nonzero) digits is 15120, while the sum is 29.

The square root of 73543043 is about 8575.7240510641. The cubic root of 73543043 is about 418.9676896497.

The spelling of 73543043 in words is "seventy-three million, five hundred forty-three thousand, forty-three".