133553432 has 16 divisors (see below), whose sum is σ = 263592600. Its totient is φ = 63262080.

The previous prime is 133553429. The next prime is 133553443. The reversal of 133553432 is 234355331.

It is a junction number, because it is equal to n+sod(n) for n = 133553395 and 133553404.

It is a congruent number.

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, 439169 + ... + 439472.

Almost surely, 2^133553432 is an apocalyptic number.

It is an amenable number.

133553432 is a deficient number, since it is larger than the sum of its proper divisors (130039168).

133553432 is a wasteful number, since it uses less digits than its factorization.

133553432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878666 (or 878662 counting only the distinct ones).

The product of its digits is 16200, while the sum is 29.

The square root of 133553432 is about 11556.5320057533. The cubic root of 133553432 is about 511.1539065336.

The spelling of 133553432 in words is "one hundred thirty-three million, five hundred fifty-three thousand, four hundred thirty-two".