133332331 has 4 divisors (see below), whose sum is σ = 145453464. Its totient is φ = 121211200.

The previous prime is 133332323. The next prime is 133332359. The reversal of 133332331 is 133233331.

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

It is not a de Polignac number, because 133332331 - 2³ = 133332323 is a prime.

It is a super-2 number, since 2×133332331² = 35555020979787122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133332361) 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 3 ways as a sum of consecutive naturals, for example, 6060550 + ... + 6060571.

It is an arithmetic number, because the mean of its divisors is an integer number (36363366).

Almost surely, 2^133332331 is an apocalyptic number.

133332331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

133332331 is a deficient number, since it is larger than the sum of its proper divisors (12121133).

133332331 is a wasteful number, since it uses less digits than its factorization.

133332331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12121132.

The product of its digits is 1458, while the sum is 22.

The square root of 133332331 is about 11546.9619814045. The cubic root of 133332331 is about 510.8716747633.

Adding to 133332331 its reverse (133233331), we get a palindrome (266565662).

The spelling of 133332331 in words is "one hundred thirty-three million, three hundred thirty-two thousand, three hundred thirty-one".