4161539 has 2 divisors, whose sum is σ = 4161540. Its totient is φ = 4161538.

The previous prime is 4161527. The next prime is 4161557. The reversal of 4161539 is 9351614.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4161539 is a prime.

It is a Chen prime.

It is a zygodrome in base 2.

It is not a weakly prime, because it can be changed into another prime (4161559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2080769 + 2080770.

It is an arithmetic number, because the mean of its divisors is an integer number (2080770).

Almost surely, 2^4161539 is an apocalyptic number.

4161539 is a deficient number, since it is larger than the sum of its proper divisors (1).

4161539 is an equidigital number, since it uses as much as digits as its factorization.

4161539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 29.

The square root of 4161539 is about 2039.9850489648. The cubic root of 4161539 is about 160.8488609013.

The spelling of 4161539 in words is "four million, one hundred sixty-one thousand, five hundred thirty-nine".