43157713 has 8 divisors (see below), whose sum is σ = 47272680. Its totient is φ = 39217920.

The previous prime is 43157711. The next prime is 43157731. The reversal of 43157713 is 31775134.

It can be written as a sum of positive squares in 4 ways, for example, as 10804369 + 32353344 = 3287^2 + 5688^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 43157713 - 2¹ = 43157711 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43157711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43278 + ... + 44263.

It is an arithmetic number, because the mean of its divisors is an integer number (5909085).

Almost surely, 2^43157713 is an apocalyptic number.

It is an amenable number.

43157713 is a deficient number, since it is larger than the sum of its proper divisors (4114967).

43157713 is a wasteful number, since it uses less digits than its factorization.

43157713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87587.

The product of its digits is 8820, while the sum is 31.

The square root of 43157713 is about 6569.4530213710. The cubic root of 43157713 is about 350.7676023772.

The spelling of 43157713 in words is "forty-three million, one hundred fifty-seven thousand, seven hundred thirteen".