133424013 has 8 divisors (see below), whose sum is σ = 178272000. Its totient is φ = 88762688.

The previous prime is 133424009. The next prime is 133424033. The reversal of 133424013 is 310424331.

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 133424013 - 2² = 133424009 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133424033) 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, 44988 + ... + 47861.

It is an arithmetic number, because the mean of its divisors is an integer number (22284000).

Almost surely, 2^133424013 is an apocalyptic number.

It is an amenable number.

133424013 is a deficient number, since it is larger than the sum of its proper divisors (44847987).

133424013 is an equidigital number, since it uses as much as digits as its factorization.

133424013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93331.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 133424013 is about 11550.9312611581. The cubic root of 133424013 is about 510.9887431571.

Adding to 133424013 its reverse (310424331), we get a palindrome (443848344).

The spelling of 133424013 in words is "one hundred thirty-three million, four hundred twenty-four thousand, thirteen".