133230131 has 2 divisors, whose sum is σ = 133230132. Its totient is φ = 133230130.

The previous prime is 133230121. The next prime is 133230143. The reversal of 133230131 is 131032331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 133230131 - 2²² = 129035827 is a prime.

It is a super-2 number, since 2×133230131² = 35500535612554322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (133230121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66615065 + 66615066.

It is an arithmetic number, because the mean of its divisors is an integer number (66615066).

Almost surely, 2^133230131 is an apocalyptic number.

133230131 is a deficient number, since it is larger than the sum of its proper divisors (1).

133230131 is an equidigital number, since it uses as much as digits as its factorization.

133230131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 133230131 is about 11542.5357266070. The cubic root of 133230131 is about 510.7411127047.

Adding to 133230131 its reverse (131032331), we get a palindrome (264262462).

The spelling of 133230131 in words is "one hundred thirty-three million, two hundred thirty thousand, one hundred thirty-one".