12340045 has 8 divisors (see below), whose sum is σ = 15679224. Its totient is φ = 9291264.

The previous prime is 12340033. The next prime is 12340061. The reversal of 12340045 is 54004321.

It can be written as a sum of positive squares in 4 ways, for example, as 6985449 + 5354596 = 2643^2 + 2314^2 .

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 12340045 - 2⁹ = 12339533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72504 + ... + 72673.

It is an arithmetic number, because the mean of its divisors is an integer number (1959903).

Almost surely, 2^12340045 is an apocalyptic number.

It is an amenable number.

12340045 is a deficient number, since it is larger than the sum of its proper divisors (3339179).

12340045 is a wasteful number, since it uses less digits than its factorization.

12340045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145199.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 12340045 is about 3512.8400191298. The cubic root of 12340045 is about 231.0852617802.

Adding to 12340045 its reverse (54004321), we get a palindrome (66344366).

The spelling of 12340045 in words is "twelve million, three hundred forty thousand, forty-five".