12247135567 has 2 divisors, whose sum is σ = 12247135568. Its totient is φ = 12247135566.

The previous prime is 12247135499. The next prime is 12247135651. The reversal of 12247135567 is 76553174221.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12247135567 is a prime.

It is a super-2 number, since 2×12247135567² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12247135067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6123567783 + 6123567784.

It is an arithmetic number, because the mean of its divisors is an integer number (6123567784).

Almost surely, 2^12247135567 is an apocalyptic number.

12247135567 is a deficient number, since it is larger than the sum of its proper divisors (1).

12247135567 is an equidigital number, since it uses as much as digits as its factorization.

12247135567 is an evil number, because the sum of its binary digits is even.

The product of its digits is 352800, while the sum is 43.

The spelling of 12247135567 in words is "twelve billion, two hundred forty-seven million, one hundred thirty-five thousand, five hundred sixty-seven".