133303325 has 12 divisors (see below), whose sum is σ = 165712980. Its totient is φ = 106373760.

The previous prime is 133303279. The next prime is 133303337. The reversal of 133303325 is 523303331.

It can be written as a sum of positive squares in 6 ways, for example, as 4866436 + 128436889 = 2206^2 + 11333^2 .

It is a de Polignac number, because none of the positive numbers 2^k-133303325 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 133303325.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3707 + ... + 16743.

It is an arithmetic number, because the mean of its divisors is an integer number (13809415).

Almost surely, 2^133303325 is an apocalyptic number.

It is an amenable number.

133303325 is a deficient number, since it is larger than the sum of its proper divisors (32409655).

133303325 is a wasteful number, since it uses less digits than its factorization.

133303325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13456 (or 13451 counting only the distinct ones).

The product of its (nonzero) digits is 2430, while the sum is 23.

The square root of 133303325 is about 11545.7059117232. The cubic root of 133303325 is about 510.8346259386.

Adding to 133303325 its reverse (523303331), we get a palindrome (656606656).

The spelling of 133303325 in words is "one hundred thirty-three million, three hundred three thousand, three hundred twenty-five".