133642892 has 12 divisors (see below), whose sum is σ = 238288176. Its totient is φ = 65560560.

The previous prime is 133642889. The next prime is 133642907. The reversal of 133642892 is 298246331.

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, 314984 + ... + 315407.

It is an arithmetic number, because the mean of its divisors is an integer number (19857348).

Almost surely, 2^133642892 is an apocalyptic number.

It is an amenable number.

133642892 is a deficient number, since it is larger than the sum of its proper divisors (104645284).

133642892 is a wasteful number, since it uses less digits than its factorization.

133642892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630448 (or 630446 counting only the distinct ones).

The product of its digits is 62208, while the sum is 38.

The square root of 133642892 is about 11560.4018961280. The cubic root of 133642892 is about 511.2680122300.

The spelling of 133642892 in words is "one hundred thirty-three million, six hundred forty-two thousand, eight hundred ninety-two".