2145960 has 64 divisors (see below), whose sum is σ = 7156800. Its totient is φ = 571968.

The previous prime is 2145953. The next prime is 2145977. The reversal of 2145960 is 695412.

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

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, 87 + ... + 2073.

It is an arithmetic number, because the mean of its divisors is an integer number (111825).

2^2145960 is an apocalyptic number.

2145960 is a gapful number since it is divisible by the number (20) 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 2145960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3578400).

2145960 is an abundant number, since it is smaller than the sum of its proper divisors (5010840).

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

2145960 is a wasteful number, since it uses less digits than its factorization.

2145960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2007 (or 1997 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 2145960 is about 1464.9095535220. The cubic root of 2145960 is about 128.9853958589.

The spelling of 2145960 in words is "two million, one hundred forty-five thousand, nine hundred sixty".