133510031 has 2 divisors, whose sum is σ = 133510032. Its totient is φ = 133510030.

The previous prime is 133510019. The next prime is 133510037. The reversal of 133510031 is 130015331.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133510031 is a prime.

It is a super-2 number, since 2×133510031² = 35649856755241922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 133509991 and 133510009.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133510037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66755015 + 66755016.

It is an arithmetic number, because the mean of its divisors is an integer number (66755016).

Almost surely, 2^133510031 is an apocalyptic number.

133510031 is a deficient number, since it is larger than the sum of its proper divisors (1).

133510031 is an equidigital number, since it uses as much as digits as its factorization.

133510031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 135, while the sum is 17.

The square root of 133510031 is about 11554.6540839611. The cubic root of 133510031 is about 511.0985304594.

Adding to 133510031 its reverse (130015331), we get a palindrome (263525362).

The spelling of 133510031 in words is "one hundred thirty-three million, five hundred ten thousand, thirty-one".