2145758 has 16 divisors (see below), whose sum is σ = 3390336. Its totient is φ = 1017120.

The previous prime is 2145721. The next prime is 2145763. The reversal of 2145758 is 8575412.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2960 + ... + 3612.

It is an arithmetic number, because the mean of its divisors is an integer number (211896).

2^2145758 is an apocalyptic number.

2145758 is a deficient number, since it is larger than the sum of its proper divisors (1244578).

2145758 is a wasteful number, since it uses less digits than its factorization.

2145758 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739.

The product of its digits is 11200, while the sum is 32.

The square root of 2145758 is about 1464.8406056633. The cubic root of 2145758 is about 128.9813485844.

The spelling of 2145758 in words is "two million, one hundred forty-five thousand, seven hundred fifty-eight".