133303245 has 8 divisors (see below), whose sum is σ = 213285216. Its totient is φ = 71095056.

The previous prime is 133303237. The next prime is 133303249. The reversal of 133303245 is 542303331.

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 133303245 - 2³ = 133303237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133303249) 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, 4443427 + ... + 4443456.

It is an arithmetic number, because the mean of its divisors is an integer number (26660652).

Almost surely, 2^133303245 is an apocalyptic number.

133303245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

133303245 is a deficient number, since it is larger than the sum of its proper divisors (79981971).

133303245 is an equidigital number, since it uses as much as digits as its factorization.

133303245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8886891.

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

The square root of 133303245 is about 11545.7024472312. The cubic root of 133303245 is about 510.8345237487.

Adding to 133303245 its reverse (542303331), we get a palindrome (675606576).

The spelling of 133303245 in words is "one hundred thirty-three million, three hundred three thousand, two hundred forty-five".