3151872 has 120 divisors (see below), whose sum is σ = 9909900. Its totient is φ = 995328.

The previous prime is 3151871. The next prime is 3151877. The reversal of 3151872 is 2781513.

It is a Harshad number since it is a multiple of its sum of digits (27).

Its product of digits (1680) is a multiple of the sum of its prime divisors (24).

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3151871) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 165879 + ... + 165897.

Almost surely, 2^3151872 is an apocalyptic number.

3151872 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3151872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4954950).

3151872 is an abundant number, since it is smaller than the sum of its proper divisors (6758028).

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

3151872 is an equidigital number, since it uses as much as digits as its factorization.

3151872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53 (or 24 counting only the distinct ones).

The product of its digits is 1680, while the sum is 27.

The square root of 3151872 is about 1775.3512328551. The cubic root of 3151872 is about 146.6187538630.

It can be divided in two parts, 315 and 1872, that added together give a 7-th power (2187 = 3⁷).

The spelling of 3151872 in words is "three million, one hundred fifty-one thousand, eight hundred seventy-two".