133484947 has 2 divisors, whose sum is σ = 133484948. Its totient is φ = 133484946.

The previous prime is 133484917. The next prime is 133484983. The reversal of 133484947 is 749484331.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133484947 is a prime.

It is not a weakly prime, because it can be changed into another prime (133484917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66742473 + 66742474.

It is an arithmetic number, because the mean of its divisors is an integer number (66742474).

Almost surely, 2^133484947 is an apocalyptic number.

133484947 is a deficient number, since it is larger than the sum of its proper divisors (1).

133484947 is an equidigital number, since it uses as much as digits as its factorization.

133484947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 43.

The square root of 133484947 is about 11553.5685829098. The cubic root of 133484947 is about 511.0665198846.

It can be divided in two parts, 133484 and 947, that added together give a palindrome (134431).

The spelling of 133484947 in words is "one hundred thirty-three million, four hundred eighty-four thousand, nine hundred forty-seven".