135528791 has 8 divisors (see below), whose sum is σ = 139754160. Its totient is φ = 131365312.

The previous prime is 135528787. The next prime is 135528793. The reversal of 135528791 is 197825531.

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

It is a cyclic number.

It is not a de Polignac number, because 135528791 - 2² = 135528787 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135528793) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11006 + ... + 19803.

It is an arithmetic number, because the mean of its divisors is an integer number (17469270).

Almost surely, 2^135528791 is an apocalyptic number.

135528791 is a deficient number, since it is larger than the sum of its proper divisors (4225369).

135528791 is an equidigital number, since it uses as much as digits as its factorization.

135528791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30945.

The product of its digits is 75600, while the sum is 41.

The square root of 135528791 is about 11641.6833404796. The cubic root of 135528791 is about 513.6617038937.

The spelling of 135528791 in words is "one hundred thirty-five million, five hundred twenty-eight thousand, seven hundred ninety-one".