135169285 has 8 divisors (see below), whose sum is σ = 162539136. Its totient is φ = 107911440.

The previous prime is 135169283. The next prime is 135169289. The reversal of 135169285 is 582961531.

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

It is not a de Polignac number, because 135169285 - 2¹ = 135169283 is a prime.

It is a super-2 number, since 2×135169285² = 36541471214822450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135169283) 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, 25321 + ... + 30190.

It is an arithmetic number, because the mean of its divisors is an integer number (20317392).

Almost surely, 2^135169285 is an apocalyptic number.

It is an amenable number.

135169285 is a deficient number, since it is larger than the sum of its proper divisors (27369851).

135169285 is an equidigital number, since it uses as much as digits as its factorization.

135169285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56003.

The product of its digits is 64800, while the sum is 40.

The square root of 135169285 is about 11626.2326228233. The cubic root of 135169285 is about 513.2071190890.

It can be divided in two parts, 13516 and 9285, that added together give a square (22801 = 151²).

The spelling of 135169285 in words is "one hundred thirty-five million, one hundred sixty-nine thousand, two hundred eighty-five".