133130402 has 8 divisors (see below), whose sum is σ = 199756800. Its totient is φ = 66544804.

The previous prime is 133130401. The next prime is 133130419. The reversal of 133130402 is 204031331.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (133130401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2 + ... + 16317.

It is an arithmetic number, because the mean of its divisors is an integer number (24969600).

Almost surely, 2^133130402 is an apocalyptic number.

133130402 is a deficient number, since it is larger than the sum of its proper divisors (66626398).

133130402 is a wasteful number, since it uses less digits than its factorization.

133130402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20400.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 133130402 is about 11538.2148532604. The cubic root of 133130402 is about 510.6136430035.

Adding to 133130402 its reverse (204031331), we get a palindrome (337161733).

The spelling of 133130402 in words is "one hundred thirty-three million, one hundred thirty thousand, four hundred two".