12765149 has 4 divisors (see below), whose sum is σ = 13176960. Its totient is φ = 12353340.

The previous prime is 12765143. The next prime is 12765157. The reversal of 12765149 is 94156721.

12765149 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: 94156721 = 71 ⋅1326151.

It is a cyclic number.

It is not a de Polignac number, because 12765149 - 2¹⁶ = 12699613 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 (12765143) 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, 205859 + ... + 205920.

It is an arithmetic number, because the mean of its divisors is an integer number (3294240).

Almost surely, 2^12765149 is an apocalyptic number.

It is an amenable number.

12765149 is a deficient number, since it is larger than the sum of its proper divisors (411811).

12765149 is an equidigital number, since it uses as much as digits as its factorization.

12765149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411810.

The product of its digits is 15120, while the sum is 35.

The square root of 12765149 is about 3572.8348688401. The cubic root of 12765149 is about 233.7089241215.

The spelling of 12765149 in words is "twelve million, seven hundred sixty-five thousand, one hundred forty-nine".