3031161 has 8 divisors (see below), whose sum is σ = 4618944. Its totient is φ = 1732080.

The previous prime is 3031157. The next prime is 3031163. The reversal of 3031161 is 1611303.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3031161 - 2² = 3031157 is a prime.

It is an Ulam number.

3031161 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 3031161.

It is not an unprimeable number, because it can be changed into a prime (3031163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72150 + ... + 72191.

It is an arithmetic number, because the mean of its divisors is an integer number (577368).

Almost surely, 2^3031161 is an apocalyptic number.

It is an amenable number.

3031161 is a deficient number, since it is larger than the sum of its proper divisors (1587783).

3031161 is a wasteful number, since it uses less digits than its factorization.

3031161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144351.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 3031161 is about 1741.0229751500. The cubic root of 3031161 is about 144.7225928823.

Adding to 3031161 its reverse (1611303), we get a palindrome (4642464).

The spelling of 3031161 in words is "three million, thirty-one thousand, one hundred sixty-one".