2145799 has 8 divisors (see below), whose sum is σ = 2201472. Its totient is φ = 2091000.

The previous prime is 2145779. The next prime is 2145821. The reversal of 2145799 is 9975412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2145799 - 2⁹ = 2145287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145709) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8424 + ... + 8674.

It is an arithmetic number, because the mean of its divisors is an integer number (275184).

2^2145799 is an apocalyptic number.

2145799 is a deficient number, since it is larger than the sum of its proper divisors (55673).

2145799 is a wasteful number, since it uses less digits than its factorization.

2145799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437.

The product of its digits is 22680, while the sum is 37.

The square root of 2145799 is about 1464.8546002931. The cubic root of 2145799 is about 128.9821700814.

The spelling of 2145799 in words is "two million, one hundred forty-five thousand, seven hundred ninety-nine".