12899451 has 8 divisors (see below), whose sum is σ = 17242960. Its totient is φ = 8577792.

The previous prime is 12899449. The next prime is 12899473. The reversal of 12899451 is 15499821.

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

It is not a de Polignac number, because 12899451 - 2¹ = 12899449 is a prime.

It is a super-2 number, since 2×12899451² = 332791672202802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12899431) 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 7 ways as a sum of consecutive naturals, for example, 4030 + ... + 6483.

It is an arithmetic number, because the mean of its divisors is an integer number (2155370).

Almost surely, 2^12899451 is an apocalyptic number.

12899451 is a deficient number, since it is larger than the sum of its proper divisors (4343509).

12899451 is a wasteful number, since it uses less digits than its factorization.

12899451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10925.

The product of its digits is 25920, while the sum is 39.

The square root of 12899451 is about 3591.5805712806. The cubic root of 12899451 is about 234.5256828010.

The spelling of 12899451 in words is "twelve million, eight hundred ninety-nine thousand, four hundred fifty-one".