3256405135 has 8 divisors (see below), whose sum is σ = 3946376736. Its totient is φ = 2579330400.

The previous prime is 3256405133. The next prime is 3256405153. The reversal of 3256405135 is 5315046523.

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

It is not a de Polignac number, because 3256405135 - 2¹ = 3256405133 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3256405135.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3256405133) 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, 3223659 + ... + 3224668.

It is an arithmetic number, because the mean of its divisors is an integer number (493297092).

Almost surely, 2^3256405135 is an apocalyptic number.

3256405135 is a deficient number, since it is larger than the sum of its proper divisors (689971601).

3256405135 is a wasteful number, since it uses less digits than its factorization.

3256405135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6448433.

The product of its (nonzero) digits is 54000, while the sum is 34.

The square root of 3256405135 is about 57064.9203539267. The cubic root of 3256405135 is about 1482.2204821721.

The spelling of 3256405135 in words is "three billion, two hundred fifty-six million, four hundred five thousand, one hundred thirty-five".