135127247 has 4 divisors (see below), whose sum is σ = 135209880. Its totient is φ = 135044616.

The previous prime is 135127243. The next prime is 135127253. The reversal of 135127247 is 742721531.

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 135127247 - 2² = 135127243 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135127243) 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, 38813 + ... + 42150.

It is an arithmetic number, because the mean of its divisors is an integer number (33802470).

Almost surely, 2^135127247 is an apocalyptic number.

135127247 is a deficient number, since it is larger than the sum of its proper divisors (82633).

135127247 is an equidigital number, since it uses as much as digits as its factorization.

135127247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82632.

The product of its digits is 11760, while the sum is 32.

The square root of 135127247 is about 11624.4245879097. The cubic root of 135127247 is about 513.1539106553.

Adding to 135127247 its reverse (742721531), we get a palindrome (877848778).

The spelling of 135127247 in words is "one hundred thirty-five million, one hundred twenty-seven thousand, two hundred forty-seven".