3521131 has 2 divisors, whose sum is σ = 3521132. Its totient is φ = 3521130.

The previous prime is 3521117. The next prime is 3521143. The reversal of 3521131 is 1311253.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3521131 - 2¹¹ = 3519083 is a prime.

It is a super-2 number, since 2×3521131² = 24796727038322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3521101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1760565 + 1760566.

It is an arithmetic number, because the mean of its divisors is an integer number (1760566).

Almost surely, 2^3521131 is an apocalyptic number.

3521131 is a deficient number, since it is larger than the sum of its proper divisors (1).

3521131 is an equidigital number, since it uses as much as digits as its factorization.

3521131 is an evil number, because the sum of its binary digits is even.

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

The square root of 3521131 is about 1876.4676922345. The cubic root of 3521131 is about 152.1343888799.

Adding to 3521131 its reverse (1311253), we get a palindrome (4832384).

The spelling of 3521131 in words is "three million, five hundred twenty-one thousand, one hundred thirty-one".