9011261 has 4 divisors (see below), whose sum is σ = 10298592. Its totient is φ = 7723932.

The previous prime is 9011251. The next prime is 9011269. The reversal of 9011261 is 1621109.

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.

It is a cyclic number.

It is not a de Polignac number, because 9011261 - 2²² = 4816957 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9011269) 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, 643655 + ... + 643668.

It is an arithmetic number, because the mean of its divisors is an integer number (2574648).

Almost surely, 2^9011261 is an apocalyptic number.

It is an amenable number.

9011261 is a deficient number, since it is larger than the sum of its proper divisors (1287331).

9011261 is a wasteful number, since it uses less digits than its factorization.

9011261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1287330.

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 9011261 is about 3001.8762466164. The cubic root of 9011261 is about 208.0951010505.

The spelling of 9011261 in words is "nine million, eleven thousand, two hundred sixty-one".