43965113 has 2 divisors, whose sum is σ = 43965114. Its totient is φ = 43965112.

The previous prime is 43965101. The next prime is 43965127. The reversal of 43965113 is 31156934.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22915369 + 21049744 = 4787^2 + 4588^2 .

It is a cyclic number.

It is not a de Polignac number, because 43965113 - 2⁸ = 43964857 is a prime.

It is a super-3 number, since 3×43965113³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 43965113.

It is not a weakly prime, because it can be changed into another prime (43965193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21982556 + 21982557.

It is an arithmetic number, because the mean of its divisors is an integer number (21982557).

Almost surely, 2^43965113 is an apocalyptic number.

It is an amenable number.

43965113 is a deficient number, since it is larger than the sum of its proper divisors (1).

43965113 is an equidigital number, since it uses as much as digits as its factorization.

43965113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9720, while the sum is 32.

The square root of 43965113 is about 6630.6193526699. The cubic root of 43965113 is about 352.9415033597.

The spelling of 43965113 in words is "forty-three million, nine hundred sixty-five thousand, one hundred thirteen".