133444632 has 16 divisors (see below), whose sum is σ = 333611640. Its totient is φ = 44481536.

The previous prime is 133444613. The next prime is 133444651. The reversal of 133444632 is 236444331.

It is an interprime number because it is at equal distance from previous prime (133444613) and next prime (133444651).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 133444632.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2780073 + ... + 2780120.

Almost surely, 2^133444632 is an apocalyptic number.

133444632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

133444632 is an abundant number, since it is smaller than the sum of its proper divisors (200167008).

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

133444632 is a wasteful number, since it uses less digits than its factorization.

133444632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5560202 (or 5560198 counting only the distinct ones).

The product of its digits is 20736, while the sum is 30.

The square root of 133444632 is about 11551.8237521181. The cubic root of 133444632 is about 511.0150640918.

Adding to 133444632 its reverse (236444331), we get a palindrome (369888963).

The spelling of 133444632 in words is "one hundred thirty-three million, four hundred forty-four thousand, six hundred thirty-two".