43130939 has 4 divisors (see below), whose sum is σ = 43558080. Its totient is φ = 42703800.

The previous prime is 43130933. The next prime is 43130959. The reversal of 43130939 is 93903134.

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

It is a cyclic number.

It is not a de Polignac number, because 43130939 - 2¹² = 43126843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43130933) 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, 213419 + ... + 213620.

It is an arithmetic number, because the mean of its divisors is an integer number (10889520).

Almost surely, 2^43130939 is an apocalyptic number.

43130939 is a deficient number, since it is larger than the sum of its proper divisors (427141).

43130939 is a wasteful number, since it uses less digits than its factorization.

43130939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427140.

The product of its (nonzero) digits is 8748, while the sum is 32.

The square root of 43130939 is about 6567.4149404465. The cubic root of 43130939 is about 350.6950514636.

The spelling of 43130939 in words is "forty-three million, one hundred thirty thousand, nine hundred thirty-nine".