135502247 has 2 divisors, whose sum is σ = 135502248. Its totient is φ = 135502246.

The previous prime is 135502193. The next prime is 135502249. The reversal of 135502247 is 742205531.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 135502247 - 2⁸ = 135501991 is a prime.

Together with 135502249, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135502249) 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 as a sum of consecutive naturals, namely, 67751123 + 67751124.

It is an arithmetic number, because the mean of its divisors is an integer number (67751124).

Almost surely, 2^135502247 is an apocalyptic number.

135502247 is a deficient number, since it is larger than the sum of its proper divisors (1).

135502247 is an equidigital number, since it uses as much as digits as its factorization.

135502247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 135502247 is about 11640.5432433371. The cubic root of 135502247 is about 513.6281672889.

Adding to 135502247 its reverse (742205531), we get a palindrome (877707778).

The spelling of 135502247 in words is "one hundred thirty-five million, five hundred two thousand, two hundred forty-seven".