9163261 has 4 divisors (see below), whose sum is σ = 9358272. Its totient is φ = 8968252.

The previous prime is 9163249. The next prime is 9163267. The reversal of 9163261 is 1623619.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1623619 = 17 ⋅95507.

It is a cyclic number.

It is not a de Polignac number, because 9163261 - 2¹⁷ = 9032189 is a prime.

It is a Duffinian number.

9163261 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9163267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97435 + ... + 97528.

It is an arithmetic number, because the mean of its divisors is an integer number (2339568).

Almost surely, 2^9163261 is an apocalyptic number.

It is an amenable number.

9163261 is a deficient number, since it is larger than the sum of its proper divisors (195011).

9163261 is a wasteful number, since it uses less digits than its factorization.

9163261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195010.

The product of its digits is 1944, while the sum is 28.

The square root of 9163261 is about 3027.0878745091. The cubic root of 9163261 is about 209.2586177588.

The spelling of 9163261 in words is "nine million, one hundred sixty-three thousand, two hundred sixty-one".