3549266161 has 4 divisors (see below), whose sum is σ = 4056304192. Its totient is φ = 3042228132.

The previous prime is 3549266153. The next prime is 3549266179. The reversal of 3549266161 is 1616629453.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1616629453 = 9461 ⋅170873.

It is a cyclic number.

It is not a de Polignac number, because 3549266161 - 2³ = 3549266153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3549266561) 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, 253519005 + ... + 253519018.

It is an arithmetic number, because the mean of its divisors is an integer number (1014076048).

Almost surely, 2^3549266161 is an apocalyptic number.

It is an amenable number.

3549266161 is a deficient number, since it is larger than the sum of its proper divisors (507038031).

3549266161 is an equidigital number, since it uses as much as digits as its factorization.

3549266161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507038030.

The product of its digits is 233280, while the sum is 43.

The square root of 3549266161 is about 59575.7178806936. The cubic root of 3549266161 is about 1525.3851806399.

The spelling of 3549266161 in words is "three billion, five hundred forty-nine million, two hundred sixty-six thousand, one hundred sixty-one".