2159933 has 4 divisors (see below), whose sum is σ = 2210208. Its totient is φ = 2109660.

The previous prime is 2159923. The next prime is 2159947. The reversal of 2159933 is 3399512.

Added to its reverse (3399512) it gives a triangular number (5559445 = T₃₃₃₄).

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2159933 - 2¹⁰ = 2158909 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2159933.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2159903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25073 + ... + 25158.

It is an arithmetic number, because the mean of its divisors is an integer number (552552).

2^2159933 is an apocalyptic number.

It is an amenable number.

2159933 is a deficient number, since it is larger than the sum of its proper divisors (50275).

2159933 is an equidigital number, since it uses as much as digits as its factorization.

2159933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50274.

The product of its digits is 7290, while the sum is 32.

The square root of 2159933 is about 1469.6710516303. The cubic root of 2159933 is about 129.2647448406.

Adding to 2159933 its reverse (3399512), we get a triangular number (5559445 = T₃₃₃₄).

The spelling of 2159933 in words is "two million, one hundred fifty-nine thousand, nine hundred thirty-three".