73031043 has 4 divisors (see below), whose sum is σ = 97374728. Its totient is φ = 48687360.

The previous prime is 73031033. The next prime is 73031047. The reversal of 73031043 is 34013037.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34013037 = 3 ⋅11337679.

It is not a de Polignac number, because 73031043 - 2⁴ = 73031027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73031047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12171838 + ... + 12171843.

It is an arithmetic number, because the mean of its divisors is an integer number (24343682).

Almost surely, 2^73031043 is an apocalyptic number.

73031043 is a deficient number, since it is larger than the sum of its proper divisors (24343685).

73031043 is a wasteful number, since it uses less digits than its factorization.

73031043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24343684.

The product of its (nonzero) digits is 756, while the sum is 21.

The square root of 73031043 is about 8545.8202063933. The cubic root of 73031043 is about 417.9931528987.

The spelling of 73031043 in words is "seventy-three million, thirty-one thousand, forty-three".