133375992 has 16 divisors (see below), whose sum is σ = 333440040. Its totient is φ = 44458656.

The previous prime is 133375973. The next prime is 133376003. The reversal of 133375992 is 299573331.

133375992 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 2778643 + ... + 2778690.

Almost surely, 2^133375992 is an apocalyptic number.

133375992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

133375992 is an abundant number, since it is smaller than the sum of its proper divisors (200064048).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133375992 is a wasteful number, since it uses less digits than its factorization.

133375992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5557342 (or 5557338 counting only the distinct ones).

The product of its digits is 153090, while the sum is 42.

The square root of 133375992 is about 11548.8524105211. The cubic root of 133375992 is about 510.9274320174.

The spelling of 133375992 in words is "one hundred thirty-three million, three hundred seventy-five thousand, nine hundred ninety-two".