135518577 has 16 divisors (see below), whose sum is σ = 197494272. Its totient is φ = 82287360.

The previous prime is 135518567. The next prime is 135518627. The reversal of 135518577 is 775815531.

It is not a de Polignac number, because 135518577 - 2¹⁴ = 135502193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135518557) 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 15 ways as a sum of consecutive naturals, for example, 41278 + ... + 44439.

It is an arithmetic number, because the mean of its divisors is an integer number (12343392).

Almost surely, 2^135518577 is an apocalyptic number.

135518577 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

135518577 is a deficient number, since it is larger than the sum of its proper divisors (61975695).

135518577 is a wasteful number, since it uses less digits than its factorization.

135518577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85768.

The product of its digits is 147000, while the sum is 42.

The square root of 135518577 is about 11641.2446499505. The cubic root of 135518577 is about 513.6487996923.

The spelling of 135518577 in words is "one hundred thirty-five million, five hundred eighteen thousand, five hundred seventy-seven".