133053231 has 8 divisors (see below), whose sum is σ = 179834800. Its totient is φ = 87486912.

The previous prime is 133053211. The next prime is 133053313. The reversal of 133053231 is 132350331.

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

It is not a de Polignac number, because 133053231 - 2⁷ = 133053103 is a prime.

It is a super-2 number, since 2×133053231² = 35406324559078722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133053198 and 133053207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133053211) 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, 303556 + ... + 303993.

It is an arithmetic number, because the mean of its divisors is an integer number (22479350).

Almost surely, 2^133053231 is an apocalyptic number.

133053231 is a deficient number, since it is larger than the sum of its proper divisors (46781569).

133053231 is an equidigital number, since it uses as much as digits as its factorization.

133053231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607625.

The product of its (nonzero) digits is 810, while the sum is 21.

The square root of 133053231 is about 11534.8702203362. The cubic root of 133053231 is about 510.5149623587.

The spelling of 133053231 in words is "one hundred thirty-three million, fifty-three thousand, two hundred thirty-one".