12434256545 has 8 divisors (see below), whose sum is σ = 15706429440. Its totient is φ = 9423857520.

The previous prime is 12434256533. The next prime is 12434256547. The reversal of 12434256545 is 54565243421.

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

It is not a de Polignac number, because 12434256545 - 2¹⁰ = 12434255521 is a prime.

It is a super-2 number, since 2×12434256545² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12434256547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65443361 + ... + 65443550.

It is an arithmetic number, because the mean of its divisors is an integer number (1963303680).

Almost surely, 2^12434256545 is an apocalyptic number.

It is an amenable number.

12434256545 is a deficient number, since it is larger than the sum of its proper divisors (3272172895).

12434256545 is a wasteful number, since it uses less digits than its factorization.

12434256545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130886935.

The product of its digits is 576000, while the sum is 41.

Adding to 12434256545 its reverse (54565243421), we get a palindrome (66999499966).

The spelling of 12434256545 in words is "twelve billion, four hundred thirty-four million, two hundred fifty-six thousand, five hundred forty-five".