133487229 has 8 divisors (see below), whose sum is σ = 179818240. Its totient is φ = 88073856.

The previous prime is 133487201. The next prime is 133487243. The reversal of 133487229 is 922784331.

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

It is not a de Polignac number, because 133487229 - 2¹¹ = 133485181 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133487129) 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, 229069 + ... + 229650.

It is an arithmetic number, because the mean of its divisors is an integer number (22477280).

Almost surely, 2^133487229 is an apocalyptic number.

It is an amenable number.

133487229 is a deficient number, since it is larger than the sum of its proper divisors (46331011).

133487229 is an equidigital number, since it uses as much as digits as its factorization.

133487229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458819.

The product of its digits is 72576, while the sum is 39.

The square root of 133487229 is about 11553.6673398536. The cubic root of 133487229 is about 511.0694321909.

The spelling of 133487229 in words is "one hundred thirty-three million, four hundred eighty-seven thousand, two hundred twenty-nine".