214051345247 has 4 divisors (see below), whose sum is σ = 214144534896. Its totient is φ = 213958155600.

The previous prime is 214051345243. The next prime is 214051345289. The reversal of 214051345247 is 742543150412.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 214051345247 - 2² = 214051345243 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 214051345247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214051345243) 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, 46591379 + ... + 46595972.

It is an arithmetic number, because the mean of its divisors is an integer number (53536133724).

Almost surely, 2^214051345247 is an apocalyptic number.

214051345247 is a deficient number, since it is larger than the sum of its proper divisors (93189649).

214051345247 is an equidigital number, since it uses as much as digits as its factorization.

214051345247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93189648.

The product of its (nonzero) digits is 134400, while the sum is 38.

Adding to 214051345247 its reverse (742543150412), we get a palindrome (956594495659).

The spelling of 214051345247 in words is "two hundred fourteen billion, fifty-one million, three hundred forty-five thousand, two hundred forty-seven".