135931527 has 28 divisors (see below), whose sum is σ = 205046800. Its totient is φ = 90069408.

The previous prime is 135931519. The next prime is 135931547. The reversal of 135931527 is 725139531.

135931527 is a `hidden beast` number, since 13 + 593 + 1 + 52 + 7 = 666.

It is not a de Polignac number, because 135931527 - 2³ = 135931519 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135931491 and 135931500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135931517) 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 27 ways as a sum of consecutive naturals, for example, 144603 + ... + 145539.

It is an arithmetic number, because the mean of its divisors is an integer number (7323100).

Almost surely, 2^135931527 is an apocalyptic number.

135931527 is a deficient number, since it is larger than the sum of its proper divisors (69115273).

135931527 is an frugal number, since it uses more digits than its factorization.

135931527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1154 (or 1139 counting only the distinct ones).

The product of its digits is 28350, while the sum is 36.

The square root of 135931527 is about 11658.9676644204. The cubic root of 135931527 is about 514.1699980725.

The spelling of 135931527 in words is "one hundred thirty-five million, nine hundred thirty-one thousand, five hundred twenty-seven".