9159001 has 2 divisors, whose sum is σ = 9159002. Its totient is φ = 9159000.

The previous prime is 9158999. The next prime is 9159013. The reversal of 9159001 is 1009519.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8696601 + 462400 = 2949^2 + 680^2 .

It is a cyclic number.

It is not a de Polignac number, because 9159001 - 2¹ = 9158999 is a prime.

Together with 9158999, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (9159061) 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, 4579500 + 4579501.

It is an arithmetic number, because the mean of its divisors is an integer number (4579501).

Almost surely, 2^9159001 is an apocalyptic number.

It is an amenable number.

9159001 is a deficient number, since it is larger than the sum of its proper divisors (1).

9159001 is an equidigital number, since it uses as much as digits as its factorization.

9159001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 405, while the sum is 25.

The square root of 9159001 is about 3026.3841461388. The cubic root of 9159001 is about 209.2261846221.

The spelling of 9159001 in words is "nine million, one hundred fifty-nine thousand, one".