133988452 has 48 divisors (see below), whose sum is σ = 261826992. Its totient is φ = 59604480.

The previous prime is 133988443. The next prime is 133988467. The reversal of 133988452 is 254889331.

It can be written as a sum of positive squares in 8 ways, for example, as 19412836 + 114575616 = 4406^2 + 10704^2 .

It is a junction number, because it is equal to n+sod(n) for n = 133988399 and 133988408.

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 15 ways as a sum of consecutive naturals, for example, 167718 + ... + 168514.

It is an arithmetic number, because the mean of its divisors is an integer number (5454729).

Almost surely, 2^133988452 is an apocalyptic number.

It is an amenable number.

133988452 is a deficient number, since it is larger than the sum of its proper divisors (127838540).

133988452 is a wasteful number, since it uses less digits than its factorization.

133988452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 928 (or 926 counting only the distinct ones).

The product of its digits is 207360, while the sum is 43.

The square root of 133988452 is about 11575.3380944143. The cubic root of 133988452 is about 511.7082943258.

The spelling of 133988452 in words is "one hundred thirty-three million, nine hundred eighty-eight thousand, four hundred fifty-two".