12259641245 has 4 divisors (see below), whose sum is σ = 14711569500. Its totient is φ = 9807712992.

The previous prime is 12259641241. The next prime is 12259641271. The reversal of 12259641245 is 54214695221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1379899609 + 10879741636 = 37147^2 + 104306^2 .

It is a cyclic number.

It is not a de Polignac number, because 12259641245 - 2² = 12259641241 is a prime.

It is a super-2 number, since 2×12259641245² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12259641241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1225964120 + ... + 1225964129.

It is an arithmetic number, because the mean of its divisors is an integer number (3677892375).

Almost surely, 2^12259641245 is an apocalyptic number.

It is an amenable number.

12259641245 is a deficient number, since it is larger than the sum of its proper divisors (2451928255).

12259641245 is an equidigital number, since it uses as much as digits as its factorization.

12259641245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2451928254.

The product of its digits is 172800, while the sum is 41.

The spelling of 12259641245 in words is "twelve billion, two hundred fifty-nine million, six hundred forty-one thousand, two hundred forty-five".