135031185 has 16 divisors (see below), whose sum is σ = 240055680. Its totient is φ = 72016560.

The previous prime is 135031181. The next prime is 135031199. The reversal of 135031185 is 581130531.

It is not a de Polignac number, because 135031185 - 2² = 135031181 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

135031185 is a modest number, since divided by 31185 gives 135 as remainder.

It is not an unprimeable number, because it can be changed into a prime (135031181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 499981 + ... + 500250.

It is an arithmetic number, because the mean of its divisors is an integer number (15003480).

Almost surely, 2^135031185 is an apocalyptic number.

135031185 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

135031185 is a deficient number, since it is larger than the sum of its proper divisors (105024495).

135031185 is a wasteful number, since it uses less digits than its factorization.

135031185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000245 (or 1000239 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 135031185 is about 11620.2919498608. The cubic root of 135031185 is about 513.0322814062.

The spelling of 135031185 in words is "one hundred thirty-five million, thirty-one thousand, one hundred eighty-five".