2123734 has 4 divisors (see below), whose sum is σ = 3185604. Its totient is φ = 1061866.

The previous prime is 2123731. The next prime is 2123741. The reversal of 2123734 is 4373212.

2123734 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 super-2 number, since 2×2123734² = 9020492205512, which contains 22 as substring.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2⁵ + 1 + 2²¹ + 3⁸ + 7² + 3⁹ + 4⁴ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123731) by changing a digit.

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, 530932 + ... + 530935.

It is an arithmetic number, because the mean of its divisors is an integer number (796401).

2^2123734 is an apocalyptic number.

2123734 is a deficient number, since it is larger than the sum of its proper divisors (1061870).

2123734 is a wasteful number, since it uses less digits than its factorization.

2123734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1061869.

The product of its digits is 1008, while the sum is 22.

The square root of 2123734 is about 1457.3036745991. The cubic root of 2123734 is about 128.5385431473.

Adding to 2123734 its reverse (4373212), we get a palindrome (6496946).

The spelling of 2123734 in words is "two million, one hundred twenty-three thousand, seven hundred thirty-four".