135731375 has 32 divisors (see below), whose sum is σ = 184451904. Its totient is φ = 99120000.

The previous prime is 135731363. The next prime is 135731389. The reversal of 135731375 is 573137531.

It is not a de Polignac number, because 135731375 - 2²² = 131537071 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 163712 + ... + 164538.

It is an arithmetic number, because the mean of its divisors is an integer number (5764122).

Almost surely, 2^135731375 is an apocalyptic number.

135731375 is a deficient number, since it is larger than the sum of its proper divisors (48720529).

135731375 is a wasteful number, since it uses less digits than its factorization.

135731375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 956 (or 946 counting only the distinct ones).

The product of its digits is 33075, while the sum is 35.

The square root of 135731375 is about 11650.3808950609. The cubic root of 135731375 is about 513.9175113782.

The spelling of 135731375 in words is "one hundred thirty-five million, seven hundred thirty-one thousand, three hundred seventy-five".