3141235521 has 6 divisors (see below), whose sum is σ = 4537340210. Its totient is φ = 2094157008.

The previous prime is 3141235519. The next prime is 3141235561. The reversal of 3141235521 is 1255321413.

3141235521 is a `hidden beast` number, since 3 + 14 + 123 + 5 + 521 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1646330625 + 1494904896 = 40575^2 + 38664^2 .

It is not a de Polignac number, because 3141235521 - 2¹ = 3141235519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3141235501) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 174513076 + ... + 174513093.

Almost surely, 2^3141235521 is an apocalyptic number.

It is an amenable number.

3141235521 is a deficient number, since it is larger than the sum of its proper divisors (1396104689).

3141235521 is a wasteful number, since it uses less digits than its factorization.

3141235521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349026175 (or 349026172 counting only the distinct ones).

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

The square root of 3141235521 is about 56046.7262291028. The cubic root of 3141235521 is about 1464.5363877591.

Adding to 3141235521 its reverse (1255321413), we get a palindrome (4396556934).

The spelling of 3141235521 in words is "three billion, one hundred forty-one million, two hundred thirty-five thousand, five hundred twenty-one".