12880237 has 4 divisors (see below), whose sum is σ = 13637916. Its totient is φ = 12122560.

The previous prime is 12880201. The next prime is 12880247. The reversal of 12880237 is 73208821.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11737476 + 1142761 = 3426^2 + 1069^2 .

It is a cyclic number.

It is not a de Polignac number, because 12880237 - 2¹¹ = 12878189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12880199 and 12880208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12880247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 378814 + ... + 378847.

It is an arithmetic number, because the mean of its divisors is an integer number (3409479).

Almost surely, 2^12880237 is an apocalyptic number.

12880237 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

12880237 is a deficient number, since it is larger than the sum of its proper divisors (757679).

12880237 is an equidigital number, since it uses as much as digits as its factorization.

12880237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 757678.

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 12880237 is about 3588.9047075675. The cubic root of 12880237 is about 234.4091813140.

It can be divided in two parts, 128802 and 37, that multiplied together give a palindrome (4765674).

The spelling of 12880237 in words is "twelve million, eight hundred eighty thousand, two hundred thirty-seven".