3555161 has 2 divisors, whose sum is σ = 3555162. Its totient is φ = 3555160.

The previous prime is 3555157. The next prime is 3555169. The reversal of 3555161 is 1615553.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3553225 + 1936 = 1885^2 + 44^2 .

It is a cyclic number.

It is not a de Polignac number, because 3555161 - 2² = 3555157 is a prime.

It is a Chen prime.

It is equal to p₂₅₃₇₅₄ and since 3555161 and 253754 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3555161.

It is not a weakly prime, because it can be changed into another prime (3555169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1777580 + 1777581.

It is an arithmetic number, because the mean of its divisors is an integer number (1777581).

Almost surely, 2^3555161 is an apocalyptic number.

It is an amenable number.

3555161 is a deficient number, since it is larger than the sum of its proper divisors (1).

3555161 is an equidigital number, since it uses as much as digits as its factorization.

3555161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2250, while the sum is 26.

The square root of 3555161 is about 1885.5134579207. The cubic root of 3555161 is about 152.6229197979.

The spelling of 3555161 in words is "three million, five hundred fifty-five thousand, one hundred sixty-one".