12243045146 has 8 divisors (see below), whose sum is σ = 18367424244. Its totient is φ = 6120570400.

The previous prime is 12243045121. The next prime is 12243045149. The reversal of 12243045146 is 64154034221.

It can be written as a sum of positive squares in 2 ways, for example, as 10299205225 + 1943839921 = 101485^2 + 44089^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×12243045146² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12243045149) 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, 459905 + ... + 485796.

Almost surely, 2^12243045146 is an apocalyptic number.

12243045146 is a deficient number, since it is larger than the sum of its proper divisors (6124379098).

12243045146 is an equidigital number, since it uses as much as digits as its factorization.

12243045146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 952176.

The product of its (nonzero) digits is 23040, while the sum is 32.

Adding to 12243045146 its reverse (64154034221), we get a palindrome (76397079367).

The spelling of 12243045146 in words is "twelve billion, two hundred forty-three million, forty-five thousand, one hundred forty-six".