135317478 has 8 divisors (see below), whose sum is σ = 270634968. Its totient is φ = 45105824.

The previous prime is 135317471. The next prime is 135317519. The reversal of 135317478 is 874713531.

It is a sphenic number, since it is the product of 3 distinct primes.

135317478 is an admirable number.

It is a super-3 number, since 3×135317478³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135317471) 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, 11276451 + ... + 11276462.

It is an arithmetic number, because the mean of its divisors is an integer number (33829371).

Almost surely, 2^135317478 is an apocalyptic number.

135317478 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135317478 is a wasteful number, since it uses less digits than its factorization.

135317478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22552918.

The product of its digits is 70560, while the sum is 39.

The square root of 135317478 is about 11632.6040936671. The cubic root of 135317478 is about 513.3946023269.

The spelling of 135317478 in words is "one hundred thirty-five million, three hundred seventeen thousand, four hundred seventy-eight".