3145656 has 32 divisors (see below), whose sum is σ = 8015760. Its totient is φ = 1028352.

The previous prime is 3145633. The next prime is 3145661. The reversal of 3145656 is 6565413.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36 + ... + 2508.

Almost surely, 2^3145656 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 3145656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4007880).

3145656 is an abundant number, since it is smaller than the sum of its proper divisors (4870104).

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

3145656 is a wasteful number, since it uses less digits than its factorization.

3145656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2535 (or 2531 counting only the distinct ones).

The product of its digits is 10800, while the sum is 30.

The square root of 3145656 is about 1773.5997293640. The cubic root of 3145656 is about 146.5223051533.

The spelling of 3145656 in words is "three million, one hundred forty-five thousand, six hundred fifty-six".