133725751 has 8 divisors (see below), whose sum is σ = 135442944. Its totient is φ = 132019800.

The previous prime is 133725727. The next prime is 133725803. The reversal of 133725751 is 157527331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 133725751 - 2⁹ = 133725239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133725701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22566 + ... + 27868.

It is an arithmetic number, because the mean of its divisors is an integer number (16930368).

Almost surely, 2^133725751 is an apocalyptic number.

133725751 is a deficient number, since it is larger than the sum of its proper divisors (1717193).

133725751 is a wasteful number, since it uses less digits than its factorization.

133725751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5621.

The product of its digits is 22050, while the sum is 34.

The square root of 133725751 is about 11563.9850830066. The cubic root of 133725751 is about 511.3736529753.

The spelling of 133725751 in words is "one hundred thirty-three million, seven hundred twenty-five thousand, seven hundred fifty-one".