3145872 has 20 divisors (see below), whose sum is σ = 8126960. Its totient is φ = 1048608.

The previous prime is 3145841. The next prime is 3145873. The reversal of 3145872 is 2785413.

It is a d-powerful number, because it can be written as 3 + 1 + 4¹⁰ + 5³ + 8 + 7 + 2²¹ .

It is not an unprimeable number, because it can be changed into a prime (3145873) 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, 32722 + ... + 32817.

It is an arithmetic number, because the mean of its divisors is an integer number (406348).

Almost surely, 2^3145872 is an apocalyptic number.

It is an amenable number.

3145872 is an abundant number, since it is smaller than the sum of its proper divisors (4981088).

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

3145872 is a wasteful number, since it uses less digits than its factorization.

3145872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65550 (or 65544 counting only the distinct ones).

The product of its digits is 6720, while the sum is 30.

The square root of 3145872 is about 1773.6606214268. The cubic root of 3145872 is about 146.5256587827.

The spelling of 3145872 in words is "three million, one hundred forty-five thousand, eight hundred seventy-two".