3161172 has 24 divisors (see below), whose sum is σ = 8430016. Its totient is φ = 903168.

The previous prime is 3161159. The next prime is 3161183. The reversal of 3161172 is 2711613.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

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, 18733 + ... + 18900.

Almost surely, 2^3161172 is an apocalyptic number.

It is an amenable number.

3161172 is an abundant number, since it is smaller than the sum of its proper divisors (5268844).

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

3161172 is a wasteful number, since it uses less digits than its factorization.

3161172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37647 (or 37645 counting only the distinct ones).

The product of its digits is 252, while the sum is 21.

The square root of 3161172 is about 1777.9685036580. The cubic root of 3161172 is about 146.7628180351.

Adding to 3161172 its reverse (2711613), we get a palindrome (5872785).

It can be divided in two parts, 3161 and 172, that added together give a palindrome (3333).

The spelling of 3161172 in words is "three million, one hundred sixty-one thousand, one hundred seventy-two".