12345479 has 2 divisors, whose sum is σ = 12345480. Its totient is φ = 12345478.

The previous prime is 12345439. The next prime is 12345491. The reversal of 12345479 is 97454321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12345479 - 2²⁰ = 11296903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12345419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6172739 + 6172740.

It is an arithmetic number, because the mean of its divisors is an integer number (6172740).

Almost surely, 2^12345479 is an apocalyptic number.

12345479 is a deficient number, since it is larger than the sum of its proper divisors (1).

12345479 is an equidigital number, since it uses as much as digits as its factorization.

12345479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 35.

The square root of 12345479 is about 3513.6133822605. The cubic root of 12345479 is about 231.1191766495.

The spelling of 12345479 in words is "twelve million, three hundred forty-five thousand, four hundred seventy-nine".