12450665 has 8 divisors (see below), whose sum is σ = 14997960. Its totient is φ = 9922432.

The previous prime is 12450653. The next prime is 12450667. The reversal of 12450665 is 56605421.

It can be written as a sum of positive squares in 4 ways, for example, as 534361 + 11916304 = 731^2 + 3452^2 .

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 12450665 - 2¹⁴ = 12434281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12450667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3284 + ... + 5973.

It is an arithmetic number, because the mean of its divisors is an integer number (1874745).

Almost surely, 2^12450665 is an apocalyptic number.

It is an amenable number.

12450665 is a deficient number, since it is larger than the sum of its proper divisors (2547295).

12450665 is an equidigital number, since it uses as much as digits as its factorization.

12450665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9531.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 12450665 is about 3528.5499854756. The cubic root of 12450665 is about 231.7737154002.

The spelling of 12450665 in words is "twelve million, four hundred fifty thousand, six hundred sixty-five".