12451693 has 2 divisors, whose sum is σ = 12451694. Its totient is φ = 12451692.

The previous prime is 12451679. The next prime is 12451709. The reversal of 12451693 is 39615421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6985449 + 5466244 = 2643^2 + 2338^2 .

It is a cyclic number.

It is not a de Polignac number, because 12451693 - 2²¹ = 10354541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12451093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6225846 + 6225847.

It is an arithmetic number, because the mean of its divisors is an integer number (6225847).

Almost surely, 2^12451693 is an apocalyptic number.

It is an amenable number.

12451693 is a deficient number, since it is larger than the sum of its proper divisors (1).

12451693 is an equidigital number, since it uses as much as digits as its factorization.

12451693 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480, while the sum is 31.

The square root of 12451693 is about 3528.6956513703. The cubic root of 12451693 is about 231.7800940909.

It can be divided in two parts, 124516 and 93, that added together give a square (124609 = 353²).

The spelling of 12451693 in words is "twelve million, four hundred fifty-one thousand, six hundred ninety-three".