133032331 has 4 divisors (see below), whose sum is σ = 136277064. Its totient is φ = 129787600.

The previous prime is 133032323. The next prime is 133032337. The reversal of 133032331 is 133230331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 133032331 - 2³ = 133032323 is a prime.

It is a super-2 number, since 2×133032331² = 35395202182587122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133032299 and 133032308.

It is not an unprimeable number, because it can be changed into a prime (133032337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1622305 + ... + 1622386.

It is an arithmetic number, because the mean of its divisors is an integer number (34069266).

Almost surely, 2^133032331 is an apocalyptic number.

133032331 is a deficient number, since it is larger than the sum of its proper divisors (3244733).

133032331 is an equidigital number, since it uses as much as digits as its factorization.

133032331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3244732.

The product of its (nonzero) digits is 486, while the sum is 19.

The square root of 133032331 is about 11533.9642361159. The cubic root of 133032331 is about 510.4882303975.

Adding to 133032331 its reverse (133230331), we get a palindrome (266262662).

The spelling of 133032331 in words is "one hundred thirty-three million, thirty-two thousand, three hundred thirty-one".