3531161 has 2 divisors, whose sum is σ = 3531162. Its totient is φ = 3531160.

The previous prime is 3531139. The next prime is 3531173. The reversal of 3531161 is 1611353.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3222025 + 309136 = 1795^2 + 556^2 .

It is an emirp because it is prime and its reverse (1611353) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3531161 - 2⁶ = 3531097 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (3531181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1765580 + 1765581.

It is an arithmetic number, because the mean of its divisors is an integer number (1765581).

Almost surely, 2^3531161 is an apocalyptic number.

It is an amenable number.

3531161 is a deficient number, since it is larger than the sum of its proper divisors (1).

3531161 is an equidigital number, since it uses as much as digits as its factorization.

3531161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 270, while the sum is 20.

The square root of 3531161 is about 1879.1383663797. The cubic root of 3531161 is about 152.2787043807.

The spelling of 3531161 in words is "three million, five hundred thirty-one thousand, one hundred sixty-one".