3911161 has 4 divisors (see below), whose sum is σ = 3918672. Its totient is φ = 3903652.

The previous prime is 3911153. The next prime is 3911179. The reversal of 3911161 is 1611193.

It is a happy number.

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 3911161 - 2³ = 3911153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3911111) 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, 2911 + ... + 4036.

It is an arithmetic number, because the mean of its divisors is an integer number (979668).

Almost surely, 2^3911161 is an apocalyptic number.

It is an amenable number.

3911161 is a deficient number, since it is larger than the sum of its proper divisors (7511).

3911161 is an equidigital number, since it uses as much as digits as its factorization.

3911161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7510.

The product of its digits is 162, while the sum is 22.

The square root of 3911161 is about 1977.6655430077. The cubic root of 3911161 is about 157.5561033018.

Subtracting from 3911161 its reverse (1611193), we obtain a cube (2299968 = 132³).

The spelling of 3911161 in words is "three million, nine hundred eleven thousand, one hundred sixty-one".