12135562347 has 8 divisors (see below), whose sum is σ = 16198995456. Its totient is φ = 8081252072.

The previous prime is 12135562331. The next prime is 12135562357. The reversal of 12135562347 is 74326553121.

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

It is a cyclic number.

It is not a de Polignac number, because 12135562347 - 2⁴ = 12135562331 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12135562357) 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, 2277603 + ... + 2282924.

It is an arithmetic number, because the mean of its divisors is an integer number (2024874432).

Almost surely, 2^12135562347 is an apocalyptic number.

12135562347 is a deficient number, since it is larger than the sum of its proper divisors (4063433109).

12135562347 is an equidigital number, since it uses as much as digits as its factorization.

12135562347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4561417.

The product of its digits is 151200, while the sum is 39.

The spelling of 12135562347 in words is "twelve billion, one hundred thirty-five million, five hundred sixty-two thousand, three hundred forty-seven".