12214545 has 16 divisors (see below), whose sum is σ = 22335360. Its totient is φ = 5583744.

The previous prime is 12214523. The next prime is 12214561. The reversal of 12214545 is 54541221.

It is not a de Polignac number, because 12214545 - 2⁷ = 12214417 is a prime.

It is a nialpdrome in base 16.

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, 58060 + ... + 58269.

It is an arithmetic number, because the mean of its divisors is an integer number (1395960).

Almost surely, 2^12214545 is an apocalyptic number.

12214545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12214545 is a deficient number, since it is larger than the sum of its proper divisors (10120815).

12214545 is a wasteful number, since it uses less digits than its factorization.

12214545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116344.

The product of its digits is 1600, while the sum is 24.

The square root of 12214545 is about 3494.9313297975. The cubic root of 12214545 is about 230.2992010305.

Adding to 12214545 its reverse (54541221), we get a palindrome (66755766).

The spelling of 12214545 in words is "twelve million, two hundred fourteen thousand, five hundred forty-five".