133693696 has 36 divisors (see below), whose sum is σ = 267780352. Its totient is φ = 66617856.

The previous prime is 133693673. The next prime is 133693699. The reversal of 133693696 is 696396331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133693699) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93241 + ... + 94663.

Almost surely, 2^133693696 is an apocalyptic number.

133693696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133693696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133890176).

133693696 is an abundant number, since it is smaller than the sum of its proper divisors (134086656).

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

133693696 is an equidigital number, since it uses as much as digits as its factorization.

133693696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1806 (or 1792 counting only the distinct ones).

The product of its digits is 472392, while the sum is 46.

The square root of 133693696 is about 11562.5990157923. The cubic root of 133693696 is about 511.3327897602.

The spelling of 133693696 in words is "one hundred thirty-three million, six hundred ninety-three thousand, six hundred ninety-six".