4135531212 has 36 divisors (see below), whose sum is σ = 10485316296. Its totient is φ = 1374341760.

The previous prime is 4135531193. The next prime is 4135531219. The reversal of 4135531212 is 2121355314.

4135531212 is a `hidden beast` number, since 413 + 5 + 5 + 31 + 212 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (4135531219) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 161613 + ... + 185444.

It is an arithmetic number, because the mean of its divisors is an integer number (291258786).

Almost surely, 2^4135531212 is an apocalyptic number.

It is an amenable number.

4135531212 is an abundant number, since it is smaller than the sum of its proper divisors (6349785084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4135531212 is a wasteful number, since it uses less digits than its factorization.

4135531212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347398 (or 347393 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 4135531212 is about 64308.0960066460. The cubic root of 4135531212 is about 1605.1308223059.

Adding to 4135531212 its reverse (2121355314), we get a palindrome (6256886526).

The spelling of 4135531212 in words is "four billion, one hundred thirty-five million, five hundred thirty-one thousand, two hundred twelve".