135571738 has 8 divisors (see below), whose sum is σ = 204959232. Its totient is φ = 67251996.

The previous prime is 135571717. The next prime is 135571747. The reversal of 135571738 is 837175531.

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

It is a super-2 number, since 2×135571738² = 36759392288681288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 135571738.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 266620 + ... + 267127.

It is an arithmetic number, because the mean of its divisors is an integer number (25619904).

Almost surely, 2^135571738 is an apocalyptic number.

135571738 is a deficient number, since it is larger than the sum of its proper divisors (69387494).

135571738 is a wasteful number, since it uses less digits than its factorization.

135571738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533876.

The product of its digits is 88200, while the sum is 40.

The square root of 135571738 is about 11643.5277300310. The cubic root of 135571738 is about 513.7159553415.

The spelling of 135571738 in words is "one hundred thirty-five million, five hundred seventy-one thousand, seven hundred thirty-eight".