12942451 has 4 divisors (see below), whose sum is σ = 12998232. Its totient is φ = 12886672.

The previous prime is 12942427. The next prime is 12942467. The reversal of 12942451 is 15424921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15424921 = 379 ⋅40699.

It is a cyclic number.

It is not a de Polignac number, because 12942451 - 2¹⁹ = 12418163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12942481) 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, 27541 + ... + 28006.

It is an arithmetic number, because the mean of its divisors is an integer number (3249558).

Almost surely, 2^12942451 is an apocalyptic number.

12942451 is a deficient number, since it is larger than the sum of its proper divisors (55781).

12942451 is an equidigital number, since it uses as much as digits as its factorization.

12942451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55780.

The product of its digits is 2880, while the sum is 28.

The square root of 12942451 is about 3597.5618132285. The cubic root of 12942451 is about 234.7859889560.

The spelling of 12942451 in words is "twelve million, nine hundred forty-two thousand, four hundred fifty-one".