133010231 has 4 divisors (see below), whose sum is σ = 135519912. Its totient is φ = 130500552.

The previous prime is 133010201. The next prime is 133010237. The reversal of 133010231 is 132010331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132010331 = 7753 ⋅17027.

It is a cyclic number.

It is not a de Polignac number, because 133010231 - 2²² = 128815927 is a prime.

It is a super-2 number, since 2×133010231² = 35383443101346722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133010237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1254761 + ... + 1254866.

It is an arithmetic number, because the mean of its divisors is an integer number (33879978).

Almost surely, 2^133010231 is an apocalyptic number.

133010231 is a deficient number, since it is larger than the sum of its proper divisors (2509681).

133010231 is an equidigital number, since it uses as much as digits as its factorization.

133010231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2509680.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 133010231 is about 11533.0061562456. The cubic root of 133010231 is about 510.4599605411.

Adding to 133010231 its reverse (132010331), we get a palindrome (265020562).

The spelling of 133010231 in words is "one hundred thirty-three million, ten thousand, two hundred thirty-one".