135115669 has 24 divisors (see below), whose sum is σ = 159429600. Its totient is φ = 114004800.

The previous prime is 135115667. The next prime is 135115691. The reversal of 135115669 is 966511531.

It is not a de Polignac number, because 135115669 - 2¹ = 135115667 is a prime.

It is a super-2 number, since 2×135115669² = 36512488018635122, 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 (135115663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 92394 + ... + 93844.

It is an arithmetic number, because the mean of its divisors is an integer number (6642900).

Almost surely, 2^135115669 is an apocalyptic number.

135115669 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

135115669 is a deficient number, since it is larger than the sum of its proper divisors (24313931).

135115669 is a wasteful number, since it uses less digits than its factorization.

135115669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1525 (or 1512 counting only the distinct ones).

The product of its digits is 24300, while the sum is 37.

The square root of 135115669 is about 11623.9265740971. The cubic root of 135115669 is about 513.1392541845.

It can be divided in two parts, 1351 and 15669, that added together give a triangular number (17020 = T₁₈₄).

The spelling of 135115669 in words is "one hundred thirty-five million, one hundred fifteen thousand, six hundred sixty-nine".