135252223 has 2 divisors, whose sum is σ = 135252224. Its totient is φ = 135252222.

The previous prime is 135252211. The next prime is 135252233. The reversal of 135252223 is 322252531.

It is a strong prime.

It is an emirp because it is prime and its reverse (322252531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 135252223 - 2⁵ = 135252191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135252233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67626111 + 67626112.

It is an arithmetic number, because the mean of its divisors is an integer number (67626112).

Almost surely, 2^135252223 is an apocalyptic number.

135252223 is a deficient number, since it is larger than the sum of its proper divisors (1).

135252223 is an equidigital number, since it uses as much as digits as its factorization.

135252223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3600, while the sum is 25.

The square root of 135252223 is about 11629.7989234552. The cubic root of 135252223 is about 513.3120632198.

The spelling of 135252223 in words is "one hundred thirty-five million, two hundred fifty-two thousand, two hundred twenty-three".