133312345 has 8 divisors (see below), whose sum is σ = 160085376. Its totient is φ = 106576176.

The previous prime is 133312343. The next prime is 133312357. The reversal of 133312345 is 543213331.

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 133312345 - 2¹ = 133312343 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133312343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 507 + ... + 16336.

It is an arithmetic number, because the mean of its divisors is an integer number (20010672).

Almost surely, 2^133312345 is an apocalyptic number.

It is an amenable number.

133312345 is a deficient number, since it is larger than the sum of its proper divisors (26773031).

133312345 is a wasteful number, since it uses less digits than its factorization.

133312345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18431.

The product of its digits is 3240, while the sum is 25.

The square root of 133312345 is about 11546.0965265322. The cubic root of 133312345 is about 510.8461475927.

Adding to 133312345 its reverse (543213331), we get a palindrome (676525676).

The spelling of 133312345 in words is "one hundred thirty-three million, three hundred twelve thousand, three hundred forty-five".