135905371 has 6 divisors (see below), whose sum is σ = 158094060. Its totient is φ = 116490276.

The previous prime is 135905351. The next prime is 135905401. The reversal of 135905371 is 173509531.

It is not a de Polignac number, because 135905371 - 2¹¹ = 135903323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135905351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1386741 + ... + 1386838.

It is an arithmetic number, because the mean of its divisors is an integer number (26349010).

Almost surely, 2^135905371 is an apocalyptic number.

135905371 is a deficient number, since it is larger than the sum of its proper divisors (22188689).

135905371 is an equidigital number, since it uses as much as digits as its factorization.

135905371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2773593 (or 2773586 counting only the distinct ones).

The product of its (nonzero) digits is 14175, while the sum is 34.

The square root of 135905371 is about 11657.8458987928. The cubic root of 135905371 is about 514.1370170233.

The spelling of 135905371 in words is "one hundred thirty-five million, nine hundred five thousand, three hundred seventy-one".