43132073 has 4 divisors (see below), whose sum is σ = 43421700. Its totient is φ = 42842448.

The previous prime is 43132069. The next prime is 43132079. The reversal of 43132073 is 37023134.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16216729 + 26915344 = 4027^2 + 5188^2 .

It is a cyclic number.

It is not a de Polignac number, because 43132073 - 2² = 43132069 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43132079) 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, 144590 + ... + 144887.

It is an arithmetic number, because the mean of its divisors is an integer number (10855425).

Almost surely, 2^43132073 is an apocalyptic number.

It is an amenable number.

43132073 is a deficient number, since it is larger than the sum of its proper divisors (289627).

43132073 is a wasteful number, since it uses less digits than its factorization.

43132073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289626.

The product of its (nonzero) digits is 1512, while the sum is 23.

The square root of 43132073 is about 6567.5012752188. The cubic root of 43132073 is about 350.6981249317.

The spelling of 43132073 in words is "forty-three million, one hundred thirty-two thousand, seventy-three".