3145560 has 64 divisors (see below), whose sum is σ = 10298880. Its totient is φ = 762240.

The previous prime is 3145559. The next prime is 3145573. The reversal of 3145560 is 655413.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 3145560.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129 + ... + 2511.

It is an arithmetic number, because the mean of its divisors is an integer number (160920).

Almost surely, 2^3145560 is an apocalyptic number.

3145560 is a gapful number since it is divisible by the number (30) 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 3145560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5149440).

3145560 is an abundant number, since it is smaller than the sum of its proper divisors (7153320).

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

3145560 is a wasteful number, since it uses less digits than its factorization.

3145560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2408 (or 2404 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 3145560 is about 1773.5726655539. The cubic root of 3145560 is about 146.5208146021.

The spelling of 3145560 in words is "three million, one hundred forty-five thousand, five hundred sixty".