2145750 has 32 divisors (see below), whose sum is σ = 5357664. Its totient is φ = 572000.

The previous prime is 2145721. The next prime is 2145763. The reversal of 2145750 is 575412.

It is a self number, because there is not a number n which added to its sum of digits gives 2145750.

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, 681 + ... + 2180.

It is an arithmetic number, because the mean of its divisors is an integer number (167427).

2^2145750 is an apocalyptic number.

2145750 is an abundant number, since it is smaller than the sum of its proper divisors (3211914).

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

2145750 is a wasteful number, since it uses less digits than its factorization.

2145750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2881 (or 2871 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 2145750 is about 1464.8378749882. The cubic root of 2145750 is about 128.9811882911.

The spelling of 2145750 in words is "two million, one hundred forty-five thousand, seven hundred fifty".