135162217 has 2 divisors, whose sum is σ = 135162218. Its totient is φ = 135162216.

The previous prime is 135162187. The next prime is 135162233. The reversal of 135162217 is 712261531.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115261696 + 19900521 = 10736^2 + 4461^2 .

It is a cyclic number.

It is not a de Polignac number, because 135162217 - 2⁷ = 135162089 is a prime.

It is not a weakly prime, because it can be changed into another prime (135162017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67581108 + 67581109.

It is an arithmetic number, because the mean of its divisors is an integer number (67581109).

Almost surely, 2^135162217 is an apocalyptic number.

It is an amenable number.

135162217 is a deficient number, since it is larger than the sum of its proper divisors (1).

135162217 is an equidigital number, since it uses as much as digits as its factorization.

135162217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2520, while the sum is 28.

The square root of 135162217 is about 11625.9286510799. The cubic root of 135162217 is about 513.1981737354.

The spelling of 135162217 in words is "one hundred thirty-five million, one hundred sixty-two thousand, two hundred seventeen".