12881451 has 8 divisors (see below), whose sum is σ = 18736704. Its totient is φ = 7806920.

The previous prime is 12881441. The next prime is 12881471. The reversal of 12881451 is 15418821.

It is a happy number.

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

It is not a de Polignac number, because 12881451 - 2⁵ = 12881419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12881441) 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 7 ways as a sum of consecutive naturals, for example, 195141 + ... + 195206.

It is an arithmetic number, because the mean of its divisors is an integer number (2342088).

Almost surely, 2^12881451 is an apocalyptic number.

12881451 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12881451 is a deficient number, since it is larger than the sum of its proper divisors (5855253).

12881451 is a wasteful number, since it uses less digits than its factorization.

12881451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390361.

The product of its digits is 2560, while the sum is 30.

The square root of 12881451 is about 3589.0738359638. The cubic root of 12881451 is about 234.4165456662.

The spelling of 12881451 in words is "twelve million, eight hundred eighty-one thousand, four hundred fifty-one".