135313551 has 16 divisors (see below), whose sum is σ = 205884000. Its totient is φ = 87770304.

The previous prime is 135313511. The next prime is 135313559. The reversal of 135313551 is 155313531.

It is not a de Polignac number, because 135313551 - 2¹¹ = 135311503 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135313559) 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 15 ways as a sum of consecutive naturals, for example, 66726 + ... + 68723.

It is an arithmetic number, because the mean of its divisors is an integer number (12867750).

Almost surely, 2^135313551 is an apocalyptic number.

135313551 is a deficient number, since it is larger than the sum of its proper divisors (70570449).

135313551 is a wasteful number, since it uses less digits than its factorization.

135313551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135495 (or 135489 counting only the distinct ones).

The product of its digits is 3375, while the sum is 27.

The square root of 135313551 is about 11632.4352996266. The cubic root of 135313551 is about 513.3896359320.

The spelling of 135313551 in words is "one hundred thirty-five million, three hundred thirteen thousand, five hundred fifty-one".