135517193 has 12 divisors (see below), whose sum is σ = 159094980. Its totient is φ = 115087392.

The previous prime is 135517189. The next prime is 135517201. The reversal of 135517193 is 391715531.

It can be written as a sum of positive squares in 2 ways, for example, as 36156169 + 99361024 = 6013^2 + 9968^2 .

It is not a de Polignac number, because 135517193 - 2² = 135517189 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135517103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7346 + ... + 18027.

It is an arithmetic number, because the mean of its divisors is an integer number (13257915).

Almost surely, 2^135517193 is an apocalyptic number.

It is an amenable number.

135517193 is a deficient number, since it is larger than the sum of its proper divisors (23577787).

135517193 is a wasteful number, since it uses less digits than its factorization.

135517193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25496 (or 25489 counting only the distinct ones).

The product of its digits is 14175, while the sum is 35.

The square root of 135517193 is about 11641.1852059831. The cubic root of 135517193 is about 513.6470511193.

The spelling of 135517193 in words is "one hundred thirty-five million, five hundred seventeen thousand, one hundred ninety-three".