133110231 has 8 divisors (see below), whose sum is σ = 181809264. Its totient is φ = 86575680.

The previous prime is 133110227. The next prime is 133110233. The reversal of 133110231 is 132011331.

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

It is not a de Polignac number, because 133110231 - 2² = 133110227 is a prime.

It is a super-2 number, since 2×133110231² = 35436667193746722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 133110231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133110233) 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, 540976 + ... + 541221.

It is an arithmetic number, because the mean of its divisors is an integer number (22726158).

Almost surely, 2^133110231 is an apocalyptic number.

133110231 is a deficient number, since it is larger than the sum of its proper divisors (48699033).

133110231 is a wasteful number, since it uses less digits than its factorization.

133110231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1082241.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 133110231 is about 11537.3407247944. The cubic root of 133110231 is about 510.5878534822.

Adding to 133110231 its reverse (132011331), we get a palindrome (265121562).

The spelling of 133110231 in words is "one hundred thirty-three million, one hundred ten thousand, two hundred thirty-one".