133023241 has 4 divisors (see below), whose sum is σ = 143255812. Its totient is φ = 122790672.

The previous prime is 133023239. The next prime is 133023259. The reversal of 133023241 is 142320331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 142320331 = 59 ⋅2412209.

It can be written as a sum of positive squares in 2 ways, for example, as 68558400 + 64464841 = 8280^2 + 8029^2 .

It is a cyclic number.

It is not a de Polignac number, because 133023241 - 2¹ = 133023239 is a prime.

It is a super-2 number, since 2×133023241² = 35390365292288162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133023211) 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, 5116266 + ... + 5116291.

It is an arithmetic number, because the mean of its divisors is an integer number (35813953).

Almost surely, 2^133023241 is an apocalyptic number.

It is an amenable number.

133023241 is a deficient number, since it is larger than the sum of its proper divisors (10232571).

133023241 is a wasteful number, since it uses less digits than its factorization.

133023241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10232570.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 133023241 is about 11533.5701757955. The cubic root of 133023241 is about 510.4766030393.

Adding to 133023241 its reverse (142320331), we get a palindrome (275343572).

The spelling of 133023241 in words is "one hundred thirty-three million, twenty-three thousand, two hundred forty-one".