135277379 has 4 divisors (see below), whose sum is σ = 135305184. Its totient is φ = 135249576.

The previous prime is 135277369. The next prime is 135277391. The reversal of 135277379 is 973772531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 135277379 - 2²⁰ = 134228803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135277369) 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, 4472 + ... + 17045.

It is an arithmetic number, because the mean of its divisors is an integer number (33826296).

Almost surely, 2^135277379 is an apocalyptic number.

135277379 is a deficient number, since it is larger than the sum of its proper divisors (27805).

135277379 is an equidigital number, since it uses as much as digits as its factorization.

135277379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27804.

The product of its digits is 277830, while the sum is 44.

The square root of 135277379 is about 11630.8804051972. The cubic root of 135277379 is about 513.3438854393.

The spelling of 135277379 in words is "one hundred thirty-five million, two hundred seventy-seven thousand, three hundred seventy-nine".