3531121 has 16 divisors (see below), whose sum is σ = 4261248. Its totient is φ = 2886400.

The previous prime is 3531119. The next prime is 3531139. The reversal of 3531121 is 1211353.

It is not a de Polignac number, because 3531121 - 2¹ = 3531119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3531095 and 3531104.

It is not an unprimeable number, because it can be changed into a prime (3531161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3891 + ... + 4711.

It is an arithmetic number, because the mean of its divisors is an integer number (266328).

Almost surely, 2^3531121 is an apocalyptic number.

It is an amenable number.

3531121 is a deficient number, since it is larger than the sum of its proper divisors (730127).

3531121 is a wasteful number, since it uses less digits than its factorization.

3531121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 872.

The product of its digits is 90, while the sum is 16.

The square root of 3531121 is about 1879.1277231737. The cubic root of 3531121 is about 152.2781293884.

Adding to 3531121 its reverse (1211353), we get a palindrome (4742474).

The spelling of 3531121 in words is "three million, five hundred thirty-one thousand, one hundred twenty-one".