135248573 has 2 divisors, whose sum is σ = 135248574. Its totient is φ = 135248572.

The previous prime is 135248537. The next prime is 135248587. The reversal of 135248573 is 375842531.

Together with previous prime (135248537) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90117049 + 45131524 = 9493^2 + 6718^2 .

It is a cyclic number.

It is not a de Polignac number, because 135248573 - 2⁸ = 135248317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135248513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67624286 + 67624287.

It is an arithmetic number, because the mean of its divisors is an integer number (67624287).

Almost surely, 2^135248573 is an apocalyptic number.

It is an amenable number.

135248573 is a deficient number, since it is larger than the sum of its proper divisors (1).

135248573 is an equidigital number, since it uses as much as digits as its factorization.

135248573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 100800, while the sum is 38.

The square root of 135248573 is about 11629.6419979293. The cubic root of 135248573 is about 513.3074456595.

The spelling of 135248573 in words is "one hundred thirty-five million, two hundred forty-eight thousand, five hundred seventy-three".