133463189 has 2 divisors, whose sum is σ = 133463190. Its totient is φ = 133463188.

The previous prime is 133463179. The next prime is 133463203. The reversal of 133463189 is 981364331.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95394289 + 38068900 = 9767^2 + 6170^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133463189 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133463119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66731594 + 66731595.

It is an arithmetic number, because the mean of its divisors is an integer number (66731595).

Almost surely, 2^133463189 is an apocalyptic number.

It is an amenable number.

133463189 is a deficient number, since it is larger than the sum of its proper divisors (1).

133463189 is an equidigital number, since it uses as much as digits as its factorization.

133463189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 38.

The square root of 133463189 is about 11552.6269307028. The cubic root of 133463189 is about 511.0387504873.

The spelling of 133463189 in words is "one hundred thirty-three million, four hundred sixty-three thousand, one hundred eighty-nine".