43458361 has 2 divisors, whose sum is σ = 43458362. Its totient is φ = 43458360.

The previous prime is 43458227. The next prime is 43458379. The reversal of 43458361 is 16385434.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36000000 + 7458361 = 6000^2 + 2731^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43458361 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (43458061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21729180 + 21729181.

It is an arithmetic number, because the mean of its divisors is an integer number (21729181).

Almost surely, 2^43458361 is an apocalyptic number.

It is an amenable number.

43458361 is a deficient number, since it is larger than the sum of its proper divisors (1).

43458361 is an equidigital number, since it uses as much as digits as its factorization.

43458361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 34.

The square root of 43458361 is about 6592.2955789315. The cubic root of 43458361 is about 351.5802314718.

The spelling of 43458361 in words is "forty-three million, four hundred fifty-eight thousand, three hundred sixty-one".