12949451 has 4 divisors (see below), whose sum is σ = 12957792. Its totient is φ = 12941112.

The previous prime is 12949439. The next prime is 12949463. The reversal of 12949451 is 15494921.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (12949439) and next prime (12949463).

It is a cyclic number.

It is not a de Polignac number, because 12949451 - 2¹⁰ = 12948427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12949471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1076 + ... + 5201.

It is an arithmetic number, because the mean of its divisors is an integer number (3239448).

Almost surely, 2^12949451 is an apocalyptic number.

12949451 is a deficient number, since it is larger than the sum of its proper divisors (8341).

12949451 is an equidigital number, since it uses as much as digits as its factorization.

12949451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8340.

The product of its digits is 12960, while the sum is 35.

The square root of 12949451 is about 3598.5345628464. The cubic root of 12949451 is about 234.8283097836.

The spelling of 12949451 in words is "twelve million, nine hundred forty-nine thousand, four hundred fifty-one".