133325403 has 8 divisors (see below), whose sum is σ = 178544400. Its totient is φ = 88495008.

The previous prime is 133325371. The next prime is 133325419. The reversal of 133325403 is 304523331.

It is a happy number.

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

It is not a de Polignac number, because 133325403 - 2⁵ = 133325371 is a prime.

It is a super-3 number, since 3×133325403³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (133325453) 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, 96348 + ... + 97721.

It is an arithmetic number, because the mean of its divisors is an integer number (22318050).

Almost surely, 2^133325403 is an apocalyptic number.

133325403 is a deficient number, since it is larger than the sum of its proper divisors (45218997).

133325403 is a wasteful number, since it uses less digits than its factorization.

133325403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194301.

The product of its (nonzero) digits is 3240, while the sum is 24.

The square root of 133325403 is about 11546.6619851800. The cubic root of 133325403 is about 510.8628262462.

Adding to 133325403 its reverse (304523331), we get a palindrome (437848734).

The spelling of 133325403 in words is "one hundred thirty-three million, three hundred twenty-five thousand, four hundred three".