135631726 has 8 divisors (see below), whose sum is σ = 206313264. Its totient is φ = 66860640.

The previous prime is 135631723. The next prime is 135631733. The reversal of 135631726 is 627136531.

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

It is a junction number, because it is equal to n+sod(n) for n = 135631691 and 135631700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135631721) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 477435 + ... + 477718.

It is an arithmetic number, because the mean of its divisors is an integer number (25789158).

Almost surely, 2^135631726 is an apocalyptic number.

135631726 is a deficient number, since it is larger than the sum of its proper divisors (70681538).

135631726 is an equidigital number, since it uses as much as digits as its factorization.

135631726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 955226.

The product of its digits is 22680, while the sum is 34.

The square root of 135631726 is about 11646.1034685426. The cubic root of 135631726 is about 513.7917141219.

The spelling of 135631726 in words is "one hundred thirty-five million, six hundred thirty-one thousand, seven hundred twenty-six".