12811377 has 16 divisors (see below), whose sum is σ = 18402560. Its totient is φ = 7901712.

The previous prime is 12811373. The next prime is 12811397. The reversal of 12811377 is 77311821.

It is not a de Polignac number, because 12811377 - 2² = 12811373 is a prime.

It is a super-2 number, since 2×12811377² = 328262761272258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12811373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163 + ... + 5064.

It is an arithmetic number, because the mean of its divisors is an integer number (1150160).

Almost surely, 2^12811377 is an apocalyptic number.

It is an amenable number.

12811377 is a deficient number, since it is larger than the sum of its proper divisors (5591183).

12811377 is a wasteful number, since it uses less digits than its factorization.

12811377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5292.

The product of its digits is 2352, while the sum is 30.

The square root of 12811377 is about 3579.2983949372. The cubic root of 12811377 is about 233.9907038458.

The spelling of 12811377 in words is "twelve million, eight hundred eleven thousand, three hundred seventy-seven".