133100331 has 32 divisors (see below), whose sum is σ = 222566400. Its totient is φ = 68874624.

The previous prime is 133100299. The next prime is 133100347. The reversal of 133100331 is 133001331.

It is not a de Polignac number, because 133100331 - 2⁵ = 133100299 is a prime.

It is a super-2 number, since 2×133100331² = 35431396224619122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 133100331.

It is not an unprimeable number, because it can be changed into a prime (133100431) 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 31 ways as a sum of consecutive naturals, for example, 9870 + ... + 19068.

It is an arithmetic number, because the mean of its divisors is an integer number (6955200).

Almost surely, 2^133100331 is an apocalyptic number.

133100331 is a deficient number, since it is larger than the sum of its proper divisors (89466069).

133100331 is a wasteful number, since it uses less digits than its factorization.

133100331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9275.

The product of its (nonzero) digits is 81, while the sum is 15.

The square root of 133100331 is about 11536.9116751408. The cubic root of 133100331 is about 510.5751949384.

Adding to 133100331 its reverse (133001331), we get a palindrome (266101662).

The spelling of 133100331 in words is "one hundred thirty-three million, one hundred thousand, three hundred thirty-one".