135417423 has 4 divisors (see below), whose sum is σ = 180556568. Its totient is φ = 90278280.

The previous prime is 135417421. The next prime is 135417431. The reversal of 135417423 is 324714531.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 135417423 - 2¹ = 135417421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135417421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22569568 + ... + 22569573.

It is an arithmetic number, because the mean of its divisors is an integer number (45139142).

Almost surely, 2^135417423 is an apocalyptic number.

135417423 is a deficient number, since it is larger than the sum of its proper divisors (45139145).

135417423 is an equidigital number, since it uses as much as digits as its factorization.

135417423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45139144.

The product of its digits is 10080, while the sum is 30.

The square root of 135417423 is about 11636.8992003884. The cubic root of 135417423 is about 513.5209683532.

The spelling of 135417423 in words is "one hundred thirty-five million, four hundred seventeen thousand, four hundred twenty-three".