135421185 has 8 divisors (see below), whose sum is σ = 216673920. Its totient is φ = 72224624.

The previous prime is 135421177. The next prime is 135421193. The reversal of 135421185 is 581124531.

It is an interprime number because it is at equal distance from previous prime (135421177) and next prime (135421193).

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 135421185 - 2³ = 135421177 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4514025 + ... + 4514054.

It is an arithmetic number, because the mean of its divisors is an integer number (27084240).

Almost surely, 2^135421185 is an apocalyptic number.

135421185 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

135421185 is a deficient number, since it is larger than the sum of its proper divisors (81252735).

135421185 is an equidigital number, since it uses as much as digits as its factorization.

135421185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9028087.

The product of its digits is 4800, while the sum is 30.

The square root of 135421185 is about 11637.0608402637. The cubic root of 135421185 is about 513.5257236448.

The spelling of 135421185 in words is "one hundred thirty-five million, four hundred twenty-one thousand, one hundred eighty-five".