2159042 has 6 divisors (see below), whose sum is σ = 3241683. Its totient is φ = 1078482.

The previous prime is 2159041. The next prime is 2159063. The reversal of 2159042 is 2409512.

It can be written as a sum of positive squares in only one way, i.e., 1079521 + 1079521 = 1039^2 + 1039^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=1039.

It is a super-2 number, since 2×2159042² = 9322924715528, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2158999 and 2159017.

It is not an unprimeable number, because it can be changed into a prime (2159041) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1559 + ... + 2597.

2^2159042 is an apocalyptic number.

2159042 is a deficient number, since it is larger than the sum of its proper divisors (1082641).

2159042 is an frugal number, since it uses more digits than its factorization.

2159042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2080 (or 1041 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 2159042 is about 1469.3678913056. The cubic root of 2159042 is about 129.2469679423.

The spelling of 2159042 in words is "two million, one hundred fifty-nine thousand, forty-two".