43199641 has 2 divisors, whose sum is σ = 43199642. Its totient is φ = 43199640.

The previous prime is 43199603. The next prime is 43199659. The reversal of 43199641 is 14699134.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29539225 + 13660416 = 5435^2 + 3696^2 .

It is a cyclic number.

It is not a de Polignac number, because 43199641 - 2¹⁵ = 43166873 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 43199641.

It is not a weakly prime, because it can be changed into another prime (43191641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21599820 + 21599821.

It is an arithmetic number, because the mean of its divisors is an integer number (21599821).

Almost surely, 2^43199641 is an apocalyptic number.

It is an amenable number.

43199641 is a deficient number, since it is larger than the sum of its proper divisors (1).

43199641 is an equidigital number, since it uses as much as digits as its factorization.

43199641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328, while the sum is 37.

The square root of 43199641 is about 6572.6433799500. The cubic root of 43199641 is about 350.8811566177.

The spelling of 43199641 in words is "forty-three million, one hundred ninety-nine thousand, six hundred forty-one".