2143534 has 8 divisors (see below), whose sum is σ = 3222648. Its totient is φ = 1069320.

The previous prime is 2143517. The next prime is 2143541. The reversal of 2143534 is 4353412.

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

It is a d-powerful number, because it can be written as 2¹⁷ + 1 + 4 + 3³ + 5⁹ + 3¹⁰ + 4⁴ .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 204 + ... + 2080.

It is an arithmetic number, because the mean of its divisors is an integer number (402831).

2^2143534 is an apocalyptic number.

2143534 is a deficient number, since it is larger than the sum of its proper divisors (1079114).

2143534 is a wasteful number, since it uses less digits than its factorization.

2143534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2450.

The product of its digits is 1440, while the sum is 22.

The square root of 2143534 is about 1464.0812818966. The cubic root of 2143534 is about 128.9367716903.

Adding to 2143534 its reverse (4353412), we get a palindrome (6496946).

The spelling of 2143534 in words is "two million, one hundred forty-three thousand, five hundred thirty-four".