12258261 has 12 divisors (see below), whose sum is σ = 17810988. Its totient is φ = 8123904.

The previous prime is 12258251. The next prime is 12258263. The reversal of 12258261 is 16285221.

It is a happy number.

12258261 is a `hidden beast` number, since 1 + 22 + 582 + 61 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5336100 + 6922161 = 2310^2 + 2631^2 .

It is not a de Polignac number, because 12258261 - 2⁵ = 12258229 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12258263) 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, 2380 + ... + 5493.

It is an arithmetic number, because the mean of its divisors is an integer number (1484249).

Almost surely, 2^12258261 is an apocalyptic number.

It is an amenable number.

12258261 is a deficient number, since it is larger than the sum of its proper divisors (5552727).

12258261 is a wasteful number, since it uses less digits than its factorization.

12258261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8052 (or 8049 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

The square root of 12258261 is about 3501.1799439617. The cubic root of 12258261 is about 230.5736217538.

The spelling of 12258261 in words is "twelve million, two hundred fifty-eight thousand, two hundred sixty-one".