135318553 has 8 divisors (see below), whose sum is σ = 140142600. Its totient is φ = 130505088.

The previous prime is 135318541. The next prime is 135318571. The reversal of 135318553 is 355813531.

It can be written as a sum of positive squares in 4 ways, for example, as 10705984 + 124612569 = 3272^2 + 11163^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135318553 is a prime.

It is a super-2 number, since 2×135318553² = 36622221572027618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135316553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30675 + ... + 34807.

It is an arithmetic number, because the mean of its divisors is an integer number (17517825).

Almost surely, 2^135318553 is an apocalyptic number.

It is an amenable number.

135318553 is a deficient number, since it is larger than the sum of its proper divisors (4824047).

135318553 is a wasteful number, since it uses less digits than its factorization.

135318553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5291.

The product of its digits is 27000, while the sum is 34.

The square root of 135318553 is about 11632.6502999102. The cubic root of 135318553 is about 513.3959618402.

The spelling of 135318553 in words is "one hundred thirty-five million, three hundred eighteen thousand, five hundred fifty-three".