135231745 has 8 divisors (see below), whose sum is σ = 177030720. Its totient is φ = 98350320.

The previous prime is 135231659. The next prime is 135231751. The reversal of 135231745 is 547132531.

It is a happy number.

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

It is not a de Polignac number, because 135231745 - 2⁹ = 135231233 is a prime.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1229325 + ... + 1229434.

It is an arithmetic number, because the mean of its divisors is an integer number (22128840).

Almost surely, 2^135231745 is an apocalyptic number.

It is an amenable number.

135231745 is a deficient number, since it is larger than the sum of its proper divisors (41798975).

135231745 is a wasteful number, since it uses less digits than its factorization.

135231745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2458775.

The product of its digits is 12600, while the sum is 31.

The square root of 135231745 is about 11628.9184793772. The cubic root of 135231745 is about 513.2861557344.

The spelling of 135231745 in words is "one hundred thirty-five million, two hundred thirty-one thousand, seven hundred forty-five".