135553385 has 32 divisors (see below), whose sum is σ = 185500800. Its totient is φ = 94210560.

The previous prime is 135553373. The next prime is 135553403. The reversal of 135553385 is 583355531.

It is a happy number.

It is not a de Polignac number, because 135553385 - 2¹² = 135549289 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 119501 + ... + 120629.

It is an arithmetic number, because the mean of its divisors is an integer number (5796900).

Almost surely, 2^135553385 is an apocalyptic number.

It is an amenable number.

135553385 is a deficient number, since it is larger than the sum of its proper divisors (49947415).

135553385 is a wasteful number, since it uses less digits than its factorization.

135553385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1241.

The product of its digits is 135000, while the sum is 38.

The square root of 135553385 is about 11642.7395831050. The cubic root of 135553385 is about 513.6927728933.

The spelling of 135553385 in words is "one hundred thirty-five million, five hundred fifty-three thousand, three hundred eighty-five".