3558161 has 4 divisors (see below), whose sum is σ = 3562992. Its totient is φ = 3553332.

The previous prime is 3558133. The next prime is 3558167. The reversal of 3558161 is 1618553.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3558161 - 2¹⁴ = 3541777 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3558167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1055 + ... + 2868.

It is an arithmetic number, because the mean of its divisors is an integer number (890748).

Almost surely, 2^3558161 is an apocalyptic number.

It is an amenable number.

3558161 is a deficient number, since it is larger than the sum of its proper divisors (4831).

3558161 is an equidigital number, since it uses as much as digits as its factorization.

3558161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4830.

The product of its digits is 3600, while the sum is 29.

The square root of 3558161 is about 1886.3088294338. The cubic root of 3558161 is about 152.6658376882.

The spelling of 3558161 in words is "three million, five hundred fifty-eight thousand, one hundred sixty-one".