135822031 has 2 divisors, whose sum is σ = 135822032. Its totient is φ = 135822030.

The previous prime is 135822023. The next prime is 135822047. The reversal of 135822031 is 130228531.

135822031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 135822031 - 2³ = 135822023 is a prime.

It is a super-2 number, since 2×135822031² = 36895248209929922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 135821987 and 135822005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135822091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67911015 + 67911016.

It is an arithmetic number, because the mean of its divisors is an integer number (67911016).

Almost surely, 2^135822031 is an apocalyptic number.

135822031 is a deficient number, since it is larger than the sum of its proper divisors (1).

135822031 is an equidigital number, since it uses as much as digits as its factorization.

135822031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 135822031 is about 11654.2709338680. The cubic root of 135822031 is about 514.0319023636.

The spelling of 135822031 in words is "one hundred thirty-five million, eight hundred twenty-two thousand, thirty-one".