9591541 has 2 divisors, whose sum is σ = 9591542. Its totient is φ = 9591540.

The previous prime is 9591539. The next prime is 9591557. The reversal of 9591541 is 1451959.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9060100 + 531441 = 3010^2 + 729^2 .

It is an emirp because it is prime and its reverse (1451959) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9591541 - 2¹ = 9591539 is a prime.

Together with 9591539, it forms a pair of twin primes.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 9591497 and 9591506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9591041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4795770 + 4795771.

It is an arithmetic number, because the mean of its divisors is an integer number (4795771).

Almost surely, 2^9591541 is an apocalyptic number.

It is an amenable number.

9591541 is a deficient number, since it is larger than the sum of its proper divisors (1).

9591541 is an equidigital number, since it uses as much as digits as its factorization.

9591541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8100, while the sum is 34.

The square root of 9591541 is about 3097.0213108728. The cubic root of 9591541 is about 212.4692716813.

It can be divided in two parts, 959 and 1541, that added together give a square (2500 = 50²).

The spelling of 9591541 in words is "nine million, five hundred ninety-one thousand, five hundred forty-one".