133323527 has 4 divisors (see below), whose sum is σ = 137920920. Its totient is φ = 128726136.

The previous prime is 133323439. The next prime is 133323557. The reversal of 133323527 is 725323331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 725323331 = 23 ⋅31535797.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133323527 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 4597363 = 133323527 / (1 + 3 + 3 + 3 + 2 + 3 + 5 + 2 + 7).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 133323527.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133323557) 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, 2298653 + ... + 2298710.

It is an arithmetic number, because the mean of its divisors is an integer number (34480230).

Almost surely, 2^133323527 is an apocalyptic number.

133323527 is a deficient number, since it is larger than the sum of its proper divisors (4597393).

133323527 is an equidigital number, since it uses as much as digits as its factorization.

133323527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4597392.

The product of its digits is 11340, while the sum is 29.

The square root of 133323527 is about 11546.5807492954. The cubic root of 133323527 is about 510.8604301458.

Adding to 133323527 its reverse (725323331), we get a palindrome (858646858).

The spelling of 133323527 in words is "one hundred thirty-three million, three hundred twenty-three thousand, five hundred twenty-seven".