133694532 has 18 divisors (see below), whose sum is σ = 337950158. Its totient is φ = 44564832.

The previous prime is 133694503. The next prime is 133694543. The reversal of 133694532 is 235496331.

It is a happy number.

133694532 is a `hidden beast` number, since 1 + 3 + 36 + 94 + 532 = 666.

It can be written as a sum of positive squares in only one way, i.e., 68956416 + 64738116 = 8304^2 + 8046^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 3713737 = 133694532 / (1 + 3 + 3 + 6 + 9 + 4 + 5 + 3 + 2).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1856833 + ... + 1856904.

Almost surely, 2^133694532 is an apocalyptic number.

133694532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

133694532 is an abundant number, since it is smaller than the sum of its proper divisors (204255626).

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

133694532 is a wasteful number, since it uses less digits than its factorization.

133694532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3713747 (or 3713742 counting only the distinct ones).

The product of its digits is 58320, while the sum is 36.

The square root of 133694532 is about 11562.6351667775. The cubic root of 133694532 is about 511.3338555629. Note that the first 3 decimals are identical.

The spelling of 133694532 in words is "one hundred thirty-three million, six hundred ninety-four thousand, five hundred thirty-two".