133296347 has 4 divisors (see below), whose sum is σ = 134114280. Its totient is φ = 132478416.

The previous prime is 133296313. The next prime is 133296353. The reversal of 133296347 is 743692331.

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 133296347 - 2¹² = 133292251 is a prime.

It is a super-2 number, since 2×133296347² = 35535832247088818, which contains 22 as substring.

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 133296347.

It is not an unprimeable number, because it can be changed into a prime (133296047) 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, 408722 + ... + 409047.

It is an arithmetic number, because the mean of its divisors is an integer number (33528570).

Almost surely, 2^133296347 is an apocalyptic number.

133296347 is a deficient number, since it is larger than the sum of its proper divisors (817933).

133296347 is an equidigital number, since it uses as much as digits as its factorization.

133296347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817932.

The product of its digits is 81648, while the sum is 38.

The square root of 133296347 is about 11545.4037174973. The cubic root of 133296347 is about 510.8257122669.

It can be divided in two parts, 1332 and 96347, that added together give a palindrome (97679).

The spelling of 133296347 in words is "one hundred thirty-three million, two hundred ninety-six thousand, three hundred forty-seven".