12810577 has 8 divisors (see below), whose sum is σ = 14057064. Its totient is φ = 11601408.

The previous prime is 12810569. The next prime is 12810583. The reversal of 12810577 is 77501821.

It is a happy number.

12810577 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 4 ways, for example, as 1527696 + 11282881 = 1236^2 + 3359^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12810577 - 2³ = 12810569 is a prime.

It is a super-2 number, since 2×12810577² = 328221766145858, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12810527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8608 + ... + 9985.

It is an arithmetic number, because the mean of its divisors is an integer number (1757133).

Almost surely, 2^12810577 is an apocalyptic number.

It is an amenable number.

12810577 is a deficient number, since it is larger than the sum of its proper divisors (1246487).

12810577 is a wasteful number, since it uses less digits than its factorization.

12810577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18659.

The product of its (nonzero) digits is 3920, while the sum is 31.

The square root of 12810577 is about 3579.1866394476. The cubic root of 12810577 is about 233.9858332671.

The spelling of 12810577 in words is "twelve million, eight hundred ten thousand, five hundred seventy-seven".