135924731 has 8 divisors (see below), whose sum is σ = 138744240. Its totient is φ = 133122528.

The previous prime is 135924721. The next prime is 135924749. The reversal of 135924731 is 137429531.

135924731 is nontrivially palindromic in base 15.

135924731 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 135924731 - 2⁶ = 135924667 is a prime.

It is a super-2 number, since 2×135924731² = 36951064994844722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135924691 and 135924700.

It is not an unprimeable number, because it can be changed into a prime (135924721) 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, 12185 + ... + 20501.

It is an arithmetic number, because the mean of its divisors is an integer number (17343030).

Almost surely, 2^135924731 is an apocalyptic number.

135924731 is a deficient number, since it is larger than the sum of its proper divisors (2819509).

135924731 is an equidigital number, since it uses as much as digits as its factorization.

135924731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8653.

The product of its digits is 22680, while the sum is 35.

The square root of 135924731 is about 11658.6762113029. The cubic root of 135924731 is about 514.1614291564.

The spelling of 135924731 in words is "one hundred thirty-five million, nine hundred twenty-four thousand, seven hundred thirty-one".