3181438135 has 8 divisors (see below), whose sum is σ = 3819458016. Its totient is φ = 2543995680.

The previous prime is 3181438133. The next prime is 3181438159. The reversal of 3181438135 is 5318341813.

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

It is not a de Polignac number, because 3181438135 - 2¹ = 3181438133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3181438094 and 3181438103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3181438133) 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, 132139 + ... + 154348.

It is an arithmetic number, because the mean of its divisors is an integer number (477432252).

Almost surely, 2^3181438135 is an apocalyptic number.

3181438135 is a deficient number, since it is larger than the sum of its proper divisors (638019881).

3181438135 is a wasteful number, since it uses less digits than its factorization.

3181438135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288713.

The product of its digits is 34560, while the sum is 37.

The square root of 3181438135 is about 56404.2386261884. The cubic root of 3181438135 is about 1470.7578018514.

Adding to 3181438135 its reverse (5318341813), we get a palindrome (8499779948).

The spelling of 3181438135 in words is "three billion, one hundred eighty-one million, four hundred thirty-eight thousand, one hundred thirty-five".