133442402 has 8 divisors (see below), whose sum is σ = 200228700. Its totient is φ = 66699504.

The previous prime is 133442399. The next prime is 133442411. The reversal of 133442402 is 204244331.

It can be written as a sum of positive squares in 2 ways, for example, as 133379401 + 63001 = 11549^2 + 251^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1577 + ... + 16412.

Almost surely, 2^133442402 is an apocalyptic number.

133442402 is a deficient number, since it is larger than the sum of its proper divisors (66786298).

133442402 is a wasteful number, since it uses less digits than its factorization.

133442402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21700.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 133442402 is about 11551.7272301591. The cubic root of 133442402 is about 511.0122175430.

Adding to 133442402 its reverse (204244331), we get a palindrome (337686733).

The spelling of 133442402 in words is "one hundred thirty-three million, four hundred forty-two thousand, four hundred two".