12616345 has 16 divisors (see below), whose sum is σ = 17549568. Its totient is φ = 8527680.

The previous prime is 12616339. The next prime is 12616427. The reversal of 12616345 is 54361621.

It is not a de Polignac number, because 12616345 - 2⁹ = 12615833 is a prime.

It is a super-2 number, since 2×12616345² = 318344322318050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54 + ... + 5023.

It is an arithmetic number, because the mean of its divisors is an integer number (1096848).

Almost surely, 2^12616345 is an apocalyptic number.

It is an amenable number.

12616345 is a deficient number, since it is larger than the sum of its proper divisors (4933223).

12616345 is an equidigital number, since it uses as much as digits as its factorization.

12616345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5160.

The product of its digits is 4320, while the sum is 28.

The square root of 12616345 is about 3551.9494647306. The cubic root of 12616345 is about 232.7972534345.

Adding to 12616345 its reverse (54361621), we get a palindrome (66977966).

It can be divided in two parts, 126 and 16345, that added together give a triangular number (16471 = T₁₈₁).

The spelling of 12616345 in words is "twelve million, six hundred sixteen thousand, three hundred forty-five".