135769577 has 4 divisors (see below), whose sum is σ = 135891600. Its totient is φ = 135647556.

The previous prime is 135769567. The next prime is 135769597. The reversal of 135769577 is 775967531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 135769577 - 2¹⁰ = 135768553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135769507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59327 + ... + 61572.

It is an arithmetic number, because the mean of its divisors is an integer number (33972900).

Almost surely, 2^135769577 is an apocalyptic number.

It is an amenable number.

135769577 is a deficient number, since it is larger than the sum of its proper divisors (122023).

135769577 is a wasteful number, since it uses less digits than its factorization.

135769577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122022.

The product of its digits is 1389150, while the sum is 50.

The square root of 135769577 is about 11652.0202969271. The cubic root of 135769577 is about 513.9657213939.

The spelling of 135769577 in words is "one hundred thirty-five million, seven hundred sixty-nine thousand, five hundred seventy-seven".