133030345 has 12 divisors (see below), whose sum is σ = 185699844. Its totient is φ = 91220640.

The previous prime is 133030327. The next prime is 133030361. The reversal of 133030345 is 543030331.

It can be written as a sum of positive squares in 2 ways, for example, as 96452041 + 36578304 = 9821^2 + 6048^2 .

It is not a de Polignac number, because 133030345 - 2⁷ = 133030217 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 271246 + ... + 271735.

It is an arithmetic number, because the mean of its divisors is an integer number (15474987).

Almost surely, 2^133030345 is an apocalyptic number.

It is an amenable number.

133030345 is a deficient number, since it is larger than the sum of its proper divisors (52669499).

133030345 is an equidigital number, since it uses as much as digits as its factorization.

133030345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543000 (or 542993 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 22.

The square root of 133030345 is about 11533.8781422382. The cubic root of 133030345 is about 510.4856900760.

Adding to 133030345 its reverse (543030331), we get a palindrome (676060676).

The spelling of 133030345 in words is "one hundred thirty-three million, thirty thousand, three hundred forty-five".