9090261 has 12 divisors (see below), whose sum is σ = 13159692. Its totient is φ = 6046656.

The previous prime is 9090259. The next prime is 9090331. The reversal of 9090261 is 1620909.

It is a happy number.

9090261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 269361 + 8820900 = 519^2 + 2970^2 .

It is not a de Polignac number, because 9090261 - 2¹ = 9090259 is a prime.

It is a Curzon number.

9090261 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9090241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4735 + ... + 6371.

It is an arithmetic number, because the mean of its divisors is an integer number (1096641).

Almost surely, 2^9090261 is an apocalyptic number.

It is an amenable number.

9090261 is a deficient number, since it is larger than the sum of its proper divisors (4069431).

9090261 is a wasteful number, since it uses less digits than its factorization.

9090261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2260 (or 2257 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 9090261 is about 3015.0059701433. The cubic root of 9090261 is about 208.7014425647.

The spelling of 9090261 in words is "nine million, ninety thousand, two hundred sixty-one".