135839975271 has 64 divisors (see below), whose sum is σ = 249754745856. Its totient is φ = 63377510400.

The previous prime is 135839975231. The next prime is 135839975321. The reversal of 135839975271 is 172579938531.

It is not a de Polignac number, because 135839975271 - 2¹⁵ = 135839942503 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135839975221) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 500170 + ... + 722391.

It is an arithmetic number, because the mean of its divisors is an integer number (3902417904).

Almost surely, 2^135839975271 is an apocalyptic number.

135839975271 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

135839975271 is a deficient number, since it is larger than the sum of its proper divisors (113914770585).

135839975271 is a wasteful number, since it uses less digits than its factorization.

135839975271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1222632.

The product of its digits is 14288400, while the sum is 60.

The spelling of 135839975271 in words is "one hundred thirty-five billion, eight hundred thirty-nine million, nine hundred seventy-five thousand, two hundred seventy-one".