133577912 has 32 divisors (see below), whose sum is σ = 270481680. Its totient is φ = 61478400.

The previous prime is 133577911. The next prime is 133577929. The reversal of 133577912 is 219775331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133577911) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 40103 + ... + 43305.

Almost surely, 2^133577912 is an apocalyptic number.

It is an amenable number.

133577912 is an abundant number, since it is smaller than the sum of its proper divisors (136903768).

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

133577912 is a wasteful number, since it uses less digits than its factorization.

133577912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3623 (or 3619 counting only the distinct ones).

The product of its digits is 39690, while the sum is 38.

The square root of 133577912 is about 11557.5910984945. The cubic root of 133577912 is about 511.1851356903.

The spelling of 133577912 in words is "one hundred thirty-three million, five hundred seventy-seven thousand, nine hundred twelve".