135936977 has 4 divisors (see below), whose sum is σ = 148294896. Its totient is φ = 123579060.

The previous prime is 135936971. The next prime is 135936979. The reversal of 135936977 is 779639531.

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 not a de Polignac number, because 135936977 - 2¹⁰ = 135935953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135936971) 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 3 ways as a sum of consecutive naturals, for example, 6178943 + ... + 6178964.

It is an arithmetic number, because the mean of its divisors is an integer number (37073724).

Almost surely, 2^135936977 is an apocalyptic number.

It is an amenable number.

135936977 is a deficient number, since it is larger than the sum of its proper divisors (12357919).

135936977 is a wasteful number, since it uses less digits than its factorization.

135936977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12357918.

The product of its digits is 1071630, while the sum is 50.

The square root of 135936977 is about 11659.2013877452. The cubic root of 135936977 is about 514.1768696426.

The spelling of 135936977 in words is "one hundred thirty-five million, nine hundred thirty-six thousand, nine hundred seventy-seven".