45117539 has 2 divisors, whose sum is σ = 45117540. Its totient is φ = 45117538.

The previous prime is 45117529. The next prime is 45117547. The reversal of 45117539 is 93571154.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 45117539 - 2¹² = 45113443 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 45117499 and 45117508.

It is not a weakly prime, because it can be changed into another prime (45117529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22558769 + 22558770.

It is an arithmetic number, because the mean of its divisors is an integer number (22558770).

Almost surely, 2^45117539 is an apocalyptic number.

45117539 is a deficient number, since it is larger than the sum of its proper divisors (1).

45117539 is an equidigital number, since it uses as much as digits as its factorization.

45117539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18900, while the sum is 35.

The square root of 45117539 is about 6716.9590589790. The cubic root of 45117539 is about 355.9987454191.

The spelling of 45117539 in words is "forty-five million, one hundred seventeen thousand, five hundred thirty-nine".