12345140697 has 4 divisors (see below), whose sum is σ = 16460187600. Its totient is φ = 8230093796.

The previous prime is 12345140653. The next prime is 12345140779. The reversal of 12345140697 is 79604154321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12345140697 - 2⁸ = 12345140441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12345160697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2057523447 + ... + 2057523452.

It is an arithmetic number, because the mean of its divisors is an integer number (4115046900).

Almost surely, 2^12345140697 is an apocalyptic number.

It is an amenable number.

12345140697 is a deficient number, since it is larger than the sum of its proper divisors (4115046903).

12345140697 is an equidigital number, since it uses as much as digits as its factorization.

12345140697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4115046902.

The product of its (nonzero) digits is 181440, while the sum is 42.

The spelling of 12345140697 in words is "twelve billion, three hundred forty-five million, one hundred forty thousand, six hundred ninety-seven".