133045 has 16 divisors (see below), whose sum is σ = 181440. Its totient is φ = 92800.

The previous prime is 133039. The next prime is 133051. The reversal of 133045 is 540331.

133045 = T₁₅₀ + T₁₅₁ + ... + T₁₆₀.

133045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (133039) and next prime (133051).

It is not a de Polignac number, because 133045 - 2⁵ = 133013 is a prime.

It is a plaindrome in base 9.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2226 + ... + 2284.

It is an arithmetic number, because the mean of its divisors is an integer number (11340).

2¹³³⁰⁴⁵ is an apocalyptic number.

It is an amenable number.

133045 is a deficient number, since it is larger than the sum of its proper divisors (48395).

133045 is a wasteful number, since it uses less digits than its factorization.

133045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 133045 is about 364.7533413144. The cubic root of 133045 is about 51.0504434905.

Adding to 133045 its product of nonzero digits (180), we get a square (133225 = 365²).

Adding to 133045 its reverse (540331), we get a palindrome (673376).

The spelling of 133045 in words is "one hundred thirty-three thousand, forty-five".