12783451 has 2 divisors, whose sum is σ = 12783452. Its totient is φ = 12783450.

The previous prime is 12783401. The next prime is 12783457. The reversal of 12783451 is 15438721.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12783451 - 2²³ = 4394843 is a prime.

It is a Chen prime.

It is equal to p₈₃₆₀₈₆ and since 12783451 and 836086 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (12783457) 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 as a sum of consecutive naturals, namely, 6391725 + 6391726.

It is an arithmetic number, because the mean of its divisors is an integer number (6391726).

Almost surely, 2^12783451 is an apocalyptic number.

12783451 is a deficient number, since it is larger than the sum of its proper divisors (1).

12783451 is an equidigital number, since it uses as much as digits as its factorization.

12783451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6720, while the sum is 31.

The square root of 12783451 is about 3575.3952229089. The cubic root of 12783451 is about 233.8205639764.

The spelling of 12783451 in words is "twelve million, seven hundred eighty-three thousand, four hundred fifty-one".