133044361 has 4 divisors (see below), whose sum is σ = 133072900. Its totient is φ = 133015824.

The previous prime is 133044347. The next prime is 133044367. The reversal of 133044361 is 163440331.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 75951225 + 57093136 = 8715^2 + 7556^2 .

It is a cyclic number.

It is not a de Polignac number, because 133044361 - 2¹⁷ = 132913289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133044367) 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, 5466 + ... + 17203.

It is an arithmetic number, because the mean of its divisors is an integer number (33268225).

Almost surely, 2^133044361 is an apocalyptic number.

It is an amenable number.

133044361 is a deficient number, since it is larger than the sum of its proper divisors (28539).

133044361 is an equidigital number, since it uses as much as digits as its factorization.

133044361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28538.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 133044361 is about 11534.4857275910. The cubic root of 133044361 is about 510.5036176052.

Adding to 133044361 its reverse (163440331), we get a palindrome (296484692).

The spelling of 133044361 in words is "one hundred thirty-three million, forty-four thousand, three hundred sixty-one".