135273953 has 2 divisors, whose sum is σ = 135273954. Its totient is φ = 135273952.

The previous prime is 135273949. The next prime is 135273973. The reversal of 135273953 is 359372531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 94926049 + 40347904 = 9743^2 + 6352^2 .

It is a cyclic number.

It is not a de Polignac number, because 135273953 - 2² = 135273949 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (135273973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67636976 + 67636977.

It is an arithmetic number, because the mean of its divisors is an integer number (67636977).

Almost surely, 2^135273953 is an apocalyptic number.

It is an amenable number.

135273953 is a deficient number, since it is larger than the sum of its proper divisors (1).

135273953 is an equidigital number, since it uses as much as digits as its factorization.

135273953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 85050, while the sum is 38.

The square root of 135273953 is about 11630.7331239265. The cubic root of 135273953 is about 513.3395517978.

The spelling of 135273953 in words is "one hundred thirty-five million, two hundred seventy-three thousand, nine hundred fifty-three".