133283437 has 8 divisors (see below), whose sum is σ = 152396672. Its totient is φ = 114188400.

The previous prime is 133283411. The next prime is 133283441. The reversal of 133283437 is 734382331.

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 133283437 - 2¹⁵ = 133250669 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 (133283407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19987 + ... + 25807.

It is an arithmetic number, because the mean of its divisors is an integer number (19049584).

Almost surely, 2^133283437 is an apocalyptic number.

It is an amenable number.

133283437 is a deficient number, since it is larger than the sum of its proper divisors (19113235).

133283437 is an equidigital number, since it uses as much as digits as its factorization.

133283437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9099.

The product of its digits is 36288, while the sum is 34.

The square root of 133283437 is about 11544.8446070097. The cubic root of 133283437 is about 510.8092202599.

The spelling of 133283437 in words is "one hundred thirty-three million, two hundred eighty-three thousand, four hundred thirty-seven".