43713013 has 4 divisors (see below), whose sum is σ = 43817760. Its totient is φ = 43608268.

The previous prime is 43712971. The next prime is 43713017. The reversal of 43713013 is 31031734.

It is a happy number.

43713013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31031734 = 2 ⋅15515867.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43713013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43713017) 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, 51745 + ... + 52582.

It is an arithmetic number, because the mean of its divisors is an integer number (10954440).

Almost surely, 2^43713013 is an apocalyptic number.

It is an amenable number.

43713013 is a deficient number, since it is larger than the sum of its proper divisors (104747).

43713013 is a wasteful number, since it uses less digits than its factorization.

43713013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104746.

The product of its (nonzero) digits is 756, while the sum is 22.

The square root of 43713013 is about 6611.5817320820. The cubic root of 43713013 is about 352.2656101546.

Adding to 43713013 its reverse (31031734), we get a palindrome (74744747).

The spelling of 43713013 in words is "forty-three million, seven hundred thirteen thousand, thirteen".