12881097 has 12 divisors (see below), whose sum is σ = 18681780. Its totient is φ = 8552448.

The previous prime is 12881051. The next prime is 12881117. The reversal of 12881097 is 79018821.

It can be written as a sum of positive squares in 2 ways, for example, as 8433216 + 4447881 = 2904^2 + 2109^2 .

It is not a de Polignac number, because 12881097 - 2¹¹ = 12879049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12881047) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 472 + ... + 5097.

It is an arithmetic number, because the mean of its divisors is an integer number (1556815).

Almost surely, 2^12881097 is an apocalyptic number.

It is an amenable number.

12881097 is a deficient number, since it is larger than the sum of its proper divisors (5800683).

12881097 is a wasteful number, since it uses less digits than its factorization.

12881097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5832 (or 5829 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 36.

The square root of 12881097 is about 3589.0245192810. The cubic root of 12881097 is about 234.4143982835.

It can be divided in two parts, 128 and 81097, that added together give a square (81225 = 285²).

The spelling of 12881097 in words is "twelve million, eight hundred eighty-one thousand, ninety-seven".