135719493 has 16 divisors (see below), whose sum is σ = 222719616. Its totient is φ = 71588160.

The previous prime is 135719491. The next prime is 135719513. The reversal of 135719493 is 394917531.

It is not a de Polignac number, because 135719493 - 2¹ = 135719491 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135719491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 248298 + ... + 248843.

It is an arithmetic number, because the mean of its divisors is an integer number (13919976).

Almost surely, 2^135719493 is an apocalyptic number.

135719493 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

135719493 is a deficient number, since it is larger than the sum of its proper divisors (87000123).

135719493 is a wasteful number, since it uses less digits than its factorization.

135719493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497164.

The product of its digits is 102060, while the sum is 42.

The square root of 135719493 is about 11649.8709434912. The cubic root of 135719493 is about 513.9025147324.

The spelling of 135719493 in words is "one hundred thirty-five million, seven hundred nineteen thousand, four hundred ninety-three".