133443013 has 8 divisors (see below), whose sum is σ = 154137600. Its totient is φ = 114175680.

The previous prime is 133442999. The next prime is 133443049. The reversal of 133443013 is 310344331.

It is a happy number.

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 133443013 - 2⁹ = 133442501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133443083) 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, 356613 + ... + 356986.

It is an arithmetic number, because the mean of its divisors is an integer number (19267200).

Almost surely, 2^133443013 is an apocalyptic number.

It is an amenable number.

133443013 is a deficient number, since it is larger than the sum of its proper divisors (20694587).

133443013 is a wasteful number, since it uses less digits than its factorization.

133443013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713627.

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 133443013 is about 11551.7536763904. The cubic root of 133443013 is about 511.0129974750.

Adding to 133443013 its reverse (310344331), we get a palindrome (443787344).

The spelling of 133443013 in words is "one hundred thirty-three million, four hundred forty-three thousand, thirteen".