135830181 has 8 divisors (see below), whose sum is σ = 182710080. Its totient is φ = 89751872.

The previous prime is 135830179. The next prime is 135830197. The reversal of 135830181 is 181038531.

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

It is a cyclic number.

It is not a de Polignac number, because 135830181 - 2¹ = 135830179 is a prime.

It is a super-2 number, since 2×135830181² = 36899676140985522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135830381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 200001 + ... + 200678.

It is an arithmetic number, because the mean of its divisors is an integer number (22838760).

Almost surely, 2^135830181 is an apocalyptic number.

It is an amenable number.

135830181 is a deficient number, since it is larger than the sum of its proper divisors (46879899).

135830181 is a wasteful number, since it uses less digits than its factorization.

135830181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400795.

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 135830181 is about 11654.6205858449. The cubic root of 135830181 is about 514.0421836515.

The spelling of 135830181 in words is "one hundred thirty-five million, eight hundred thirty thousand, one hundred eighty-one".