3145664 has 28 divisors (see below), whose sum is σ = 6516624. Its totient is φ = 1503744.

The previous prime is 3145661. The next prime is 3145669. The reversal of 3145664 is 4665413.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3145661) 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, 404 + ... + 2540.

Almost surely, 2^3145664 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 3145664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3258312).

3145664 is an abundant number, since it is smaller than the sum of its proper divisors (3370960).

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

3145664 is a wasteful number, since it uses less digits than its factorization.

3145664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2172 (or 2162 counting only the distinct ones).

The product of its digits is 8640, while the sum is 29.

The square root of 3145664 is about 1773.6019846628. The cubic root of 3145664 is about 146.5224293645.

The spelling of 3145664 in words is "three million, one hundred forty-five thousand, six hundred sixty-four".