133725699 has 24 divisors (see below), whose sum is σ = 202260240. Its totient is φ = 85025472.

The previous prime is 133725679. The next prime is 133725701. The reversal of 133725699 is 996527331.

133725699 is a `hidden beast` number, since 13 + 3 + 72 + 569 + 9 = 666.

It is not a de Polignac number, because 133725699 - 2²⁴ = 116948483 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (133725619) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18577 + ... + 24749.

It is an arithmetic number, because the mean of its divisors is an integer number (8427510).

Almost surely, 2^133725699 is an apocalyptic number.

133725699 is a deficient number, since it is larger than the sum of its proper divisors (68534541).

133725699 is a wasteful number, since it uses less digits than its factorization.

133725699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6291 (or 6288 counting only the distinct ones).

The product of its digits is 306180, while the sum is 45.

The square root of 133725699 is about 11563.9828346465. The cubic root of 133725699 is about 511.3735866918.

The spelling of 133725699 in words is "one hundred thirty-three million, seven hundred twenty-five thousand, six hundred ninety-nine".