133323623 has 8 divisors (see below), whose sum is σ = 135420000. Its totient is φ = 131234688.

The previous prime is 133323601. The next prime is 133323637. The reversal of 133323623 is 326323331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 133323623 - 2⁶ = 133323559 is a prime.

It is a super-2 number, since 2×133323623² = 35550376899692258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133323592 and 133323601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133323823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42203 + ... + 45251.

It is an arithmetic number, because the mean of its divisors is an integer number (16927500).

Almost surely, 2^133323623 is an apocalyptic number.

133323623 is a deficient number, since it is larger than the sum of its proper divisors (2096377).

133323623 is an equidigital number, since it uses as much as digits as its factorization.

133323623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3721.

The product of its digits is 5832, while the sum is 26.

The square root of 133323623 is about 11546.5849063695. The cubic root of 133323623 is about 510.8605527612.

Adding to 133323623 its reverse (326323331), we get a palindrome (459646954).

The spelling of 133323623 in words is "one hundred thirty-three million, three hundred twenty-three thousand, six hundred twenty-three".