133045023 has 4 divisors (see below), whose sum is σ = 177393368. Its totient is φ = 88696680.

The previous prime is 133045019. The next prime is 133045027. The reversal of 133045023 is 320540331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 320540331 = 3 ⋅106846777.

It is an interprime number because it is at equal distance from previous prime (133045019) and next prime (133045027).

It is not a de Polignac number, because 133045023 - 2² = 133045019 is a prime.

It is a super-3 number, since 3×133045023³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133045027) 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, 22174168 + ... + 22174173.

It is an arithmetic number, because the mean of its divisors is an integer number (44348342).

Almost surely, 2^133045023 is an apocalyptic number.

133045023 is a deficient number, since it is larger than the sum of its proper divisors (44348345).

133045023 is an equidigital number, since it uses as much as digits as its factorization.

133045023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44348344.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 133045023 is about 11534.5144241099. The cubic root of 133045023 is about 510.5044643223.

Adding to 133045023 its reverse (320540331), we get a palindrome (453585354).

The spelling of 133045023 in words is "one hundred thirty-three million, forty-five thousand, twenty-three".