12116545 has 8 divisors (see below), whose sum is σ = 16617024. Its totient is φ = 8308464.

The previous prime is 12116539. The next prime is 12116551. The reversal of 12116545 is 54561121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12116539) and next prime (12116551).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12116545 - 2¹¹ = 12114497 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173059 + ... + 173128.

It is an arithmetic number, because the mean of its divisors is an integer number (2077128).

Almost surely, 2^12116545 is an apocalyptic number.

It is an amenable number.

12116545 is a deficient number, since it is larger than the sum of its proper divisors (4500479).

12116545 is an equidigital number, since it uses as much as digits as its factorization.

12116545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346199.

The product of its digits is 1200, while the sum is 25.

The square root of 12116545 is about 3480.8827903278. The cubic root of 12116545 is about 229.6816326112.

Adding to 12116545 its reverse (54561121), we get a palindrome (66677666).

The spelling of 12116545 in words is "twelve million, one hundred sixteen thousand, five hundred forty-five".