12008945 has 8 divisors (see below), whose sum is σ = 15519336. Its totient is φ = 8868096.

The previous prime is 12008939. The next prime is 12008951. The reversal of 12008945 is 54980021.

It is an interprime number because it is at equal distance from previous prime (12008939) and next prime (12008951).

It can be written as a sum of positive squares in 4 ways, for example, as 339889 + 11669056 = 583^2 + 3416^2 .

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 12008945 - 2⁶ = 12008881 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, 92312 + ... + 92441.

It is an arithmetic number, because the mean of its divisors is an integer number (1939917).

Almost surely, 2^12008945 is an apocalyptic number.

It is an amenable number.

12008945 is a deficient number, since it is larger than the sum of its proper divisors (3510391).

12008945 is a wasteful number, since it uses less digits than its factorization.

12008945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184771.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 12008945 is about 3465.3924741651. The cubic root of 12008945 is about 228.9997203203. Note that the first 3 decimals are identical.

Adding to 12008945 its reverse (54980021), we get a palindrome (66988966).

The spelling of 12008945 in words is "twelve million, eight thousand, nine hundred forty-five".