133223525 has 12 divisors (see below), whose sum is σ = 166295904. Its totient is φ = 105870000.

The previous prime is 133223513. The next prime is 133223527. The reversal of 133223525 is 525322331.

It is not a de Polignac number, because 133223525 - 2¹⁰ = 133222501 is a prime.

It is a super-2 number, since 2×133223525² = 35497015226851250, 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 = 133223494 and 133223503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133223527) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13871 + ... + 21420.

It is an arithmetic number, because the mean of its divisors is an integer number (13857992).

Almost surely, 2^133223525 is an apocalyptic number.

It is an amenable number.

133223525 is a deficient number, since it is larger than the sum of its proper divisors (33072379).

133223525 is a wasteful number, since it uses less digits than its factorization.

133223525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35452 (or 35447 counting only the distinct ones).

The product of its digits is 5400, while the sum is 26.

The square root of 133223525 is about 11542.2495641014. The cubic root of 133223525 is about 510.7326711418.

Adding to 133223525 its reverse (525322331), we get a palindrome (658545856).

The spelling of 133223525 in words is "one hundred thirty-three million, two hundred twenty-three thousand, five hundred twenty-five".