133142402 has 8 divisors (see below), whose sum is σ = 211461516. Its totient is φ = 62655232.

The previous prime is 133142389. The next prime is 133142411. The reversal of 133142402 is 204241331.

It can be written as a sum of positive squares in 2 ways, for example, as 128165041 + 4977361 = 11321^2 + 2231^2 .

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

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 3 ways as a sum of consecutive naturals, for example, 1957943 + ... + 1958010.

Almost surely, 2^133142402 is an apocalyptic number.

133142402 is a deficient number, since it is larger than the sum of its proper divisors (78319114).

133142402 is a wasteful number, since it uses less digits than its factorization.

133142402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3915972.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 133142402 is about 11538.7348526604. The cubic root of 133142402 is about 510.6289843017.

Adding to 133142402 its reverse (204241331), we get a palindrome (337383733).

The spelling of 133142402 in words is "one hundred thirty-three million, one hundred forty-two thousand, four hundred two".