12125261 has 4 divisors (see below), whose sum is σ = 12141024. Its totient is φ = 12109500.

The previous prime is 12125257. The next prime is 12125273. The reversal of 12125261 is 16252121.

12125261 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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: 16252121 = 563 ⋅28867.

It is a cyclic number.

It is not a de Polignac number, because 12125261 - 2² = 12125257 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12125231) 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, 6665 + ... + 8286.

It is an arithmetic number, because the mean of its divisors is an integer number (3035256).

Almost surely, 2^12125261 is an apocalyptic number.

It is an amenable number.

12125261 is a deficient number, since it is larger than the sum of its proper divisors (15763).

12125261 is an equidigital number, since it uses as much as digits as its factorization.

12125261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15762.

The product of its digits is 240, while the sum is 20.

The square root of 12125261 is about 3482.1345465102. The cubic root of 12125261 is about 229.7366930067.

Adding to 12125261 its reverse (16252121), we get a palindrome (28377382).

The spelling of 12125261 in words is "twelve million, one hundred twenty-five thousand, two hundred sixty-one".