133680453 has 8 divisors (see below), whose sum is σ = 180078528. Its totient is φ = 88201344.

The previous prime is 133680431. The next prime is 133680461. The reversal of 133680453 is 354086331.

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

It is not a de Polignac number, because 133680453 - 2²¹ = 131583301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133680413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 229401 + ... + 229982.

It is an arithmetic number, because the mean of its divisors is an integer number (22509816).

Almost surely, 2^133680453 is an apocalyptic number.

It is an amenable number.

133680453 is a deficient number, since it is larger than the sum of its proper divisors (46398075).

133680453 is an equidigital number, since it uses as much as digits as its factorization.

133680453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459483.

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 133680453 is about 11562.0263362440. The cubic root of 133680453 is about 511.3159058832.

The spelling of 133680453 in words is "one hundred thirty-three million, six hundred eighty thousand, four hundred fifty-three".