133430330 has 24 divisors (see below), whose sum is σ = 263995956. Its totient is φ = 48519680.

The previous prime is 133430317. The next prime is 133430347. The reversal of 133430330 is 33034331.

It can be written as a sum of positive squares in 2 ways, for example, as 121727089 + 11703241 = 11033^2 + 3421^2 .

It is a Curzon number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 53927 + ... + 56346.

Almost surely, 2^133430330 is an apocalyptic number.

133430330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133430330 is a deficient number, since it is larger than the sum of its proper divisors (130565626).

133430330 is a wasteful number, since it uses less digits than its factorization.

133430330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110302 (or 110291 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 20.

The square root of 133430330 is about 11551.2046990779. The cubic root of 133430330 is about 510.9968073350.

Adding to 133430330 its reverse (33034331), we get a palindrome (166464661).

It can be divided in two parts, 13 and 3430330, that added together give a palindrome (3430343).

The spelling of 133430330 in words is "one hundred thirty-three million, four hundred thirty thousand, three hundred thirty".