135170493 has 4 divisors (see below), whose sum is σ = 180227328. Its totient is φ = 90113660.

The previous prime is 135170489. The next prime is 135170531. The reversal of 135170493 is 394071531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 135170493 - 2² = 135170489 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135170443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22528413 + ... + 22528418.

It is an arithmetic number, because the mean of its divisors is an integer number (45056832).

Almost surely, 2^135170493 is an apocalyptic number.

It is an amenable number.

135170493 is a deficient number, since it is larger than the sum of its proper divisors (45056835).

135170493 is an equidigital number, since it uses as much as digits as its factorization.

135170493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45056834.

The product of its (nonzero) digits is 11340, while the sum is 33.

The square root of 135170493 is about 11626.2845741879. The cubic root of 135170493 is about 513.2086479185.

The spelling of 135170493 in words is "one hundred thirty-five million, one hundred seventy thousand, four hundred ninety-three".