12801771 has 6 divisors (see below), whose sum is σ = 18491460. Its totient is φ = 8534508.

The previous prime is 12801751. The next prime is 12801773. The reversal of 12801771 is 17710821.

It is not a de Polignac number, because 12801771 - 2⁹ = 12801259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12801773) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 711201 + ... + 711218.

It is an arithmetic number, because the mean of its divisors is an integer number (3081910).

Almost surely, 2^12801771 is an apocalyptic number.

12801771 is a deficient number, since it is larger than the sum of its proper divisors (5689689).

12801771 is a wasteful number, since it uses less digits than its factorization.

12801771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1422425 (or 1422422 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 27.

The square root of 12801771 is about 3577.9562602134. The cubic root of 12801771 is about 233.9322069666.

The spelling of 12801771 in words is "twelve million, eight hundred one thousand, seven hundred seventy-one".