3506856133 has 4 divisors (see below), whose sum is σ = 3825661248. Its totient is φ = 3188051020.

The previous prime is 3506856113. The next prime is 3506856139. The reversal of 3506856133 is 3316586053.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 3506856133 - 2²⁵ = 3473301701 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 (3506856139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159402541 + ... + 159402562.

It is an arithmetic number, because the mean of its divisors is an integer number (956415312).

Almost surely, 2^3506856133 is an apocalyptic number.

It is an amenable number.

3506856133 is a deficient number, since it is larger than the sum of its proper divisors (318805115).

3506856133 is a wasteful number, since it uses less digits than its factorization.

3506856133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318805114.

The product of its (nonzero) digits is 194400, while the sum is 40.

The square root of 3506856133 is about 59218.7143815196. The cubic root of 3506856133 is about 1519.2852325276.

The spelling of 3506856133 in words is "three billion, five hundred six million, eight hundred fifty-six thousand, one hundred thirty-three".