2145734 has 4 divisors (see below), whose sum is σ = 3218604. Its totient is φ = 1072866.

The previous prime is 2145721. The next prime is 2145763. The reversal of 2145734 is 4375412.

2145734 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 536432 + ... + 536435.

It is an arithmetic number, because the mean of its divisors is an integer number (804651).

2^2145734 is an apocalyptic number.

2145734 is a deficient number, since it is larger than the sum of its proper divisors (1072870).

2145734 is a wasteful number, since it uses less digits than its factorization.

2145734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072869.

The product of its digits is 3360, while the sum is 26.

The square root of 2145734 is about 1464.8324136228. The cubic root of 2145734 is about 128.9808677032.

The spelling of 2145734 in words is "two million, one hundred forty-five thousand, seven hundred thirty-four".