43135361 has 2 divisors, whose sum is σ = 43135362. Its totient is φ = 43135360.

The previous prime is 43135319. The next prime is 43135369. The reversal of 43135361 is 16353134.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43033600 + 101761 = 6560^2 + 319^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43135361 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 43135361.

It is not a weakly prime, because it can be changed into another prime (43135369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21567680 + 21567681.

It is an arithmetic number, because the mean of its divisors is an integer number (21567681).

Almost surely, 2^43135361 is an apocalyptic number.

It is an amenable number.

43135361 is a deficient number, since it is larger than the sum of its proper divisors (1).

43135361 is an equidigital number, since it uses as much as digits as its factorization.

43135361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 26.

The square root of 43135361 is about 6567.7515939627. The cubic root of 43135361 is about 350.7070360587.

Adding to 43135361 its reverse (16353134), we get a palindrome (59488495).

The spelling of 43135361 in words is "forty-three million, one hundred thirty-five thousand, three hundred sixty-one".