133047547 has 4 divisors (see below), whose sum is σ = 136141720. Its totient is φ = 129953376.

The previous prime is 133047529. The next prime is 133047569. The reversal of 133047547 is 745740331.

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 133047547 - 2¹¹ = 133045499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133047517) 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, 1547022 + ... + 1547107.

It is an arithmetic number, because the mean of its divisors is an integer number (34035430).

Almost surely, 2^133047547 is an apocalyptic number.

133047547 is a deficient number, since it is larger than the sum of its proper divisors (3094173).

133047547 is an equidigital number, since it uses as much as digits as its factorization.

133047547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3094172.

The product of its (nonzero) digits is 35280, while the sum is 34.

The square root of 133047547 is about 11534.6238343519. The cubic root of 133047547 is about 510.5076925657.

Adding to 133047547 its reverse (745740331), we get a palindrome (878787878).

The spelling of 133047547 in words is "one hundred thirty-three million, forty-seven thousand, five hundred forty-seven".