3161288 has 32 divisors (see below), whose sum is σ = 6463800. Its totient is φ = 1440768.

The previous prime is 3161273. The next prime is 3161293. The reversal of 3161288 is 8821613.

It can be written as a sum of positive squares in 4 ways, for example, as 465124 + 2696164 = 682^2 + 1642^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3161288.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11618 + ... + 11886.

Almost surely, 2^3161288 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3161288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3231900).

3161288 is an abundant number, since it is smaller than the sum of its proper divisors (3302512).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3161288 is a wasteful number, since it uses less digits than its factorization.

3161288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401 (or 397 counting only the distinct ones).

The product of its digits is 2304, while the sum is 29.

The square root of 3161288 is about 1778.0011248590. The cubic root of 3161288 is about 146.7646131793.

The spelling of 3161288 in words is "three million, one hundred sixty-one thousand, two hundred eighty-eight".