2160291 has 8 divisors (see below), whose sum is σ = 3291904. Its totient is φ = 1234440.

The previous prime is 2160283. The next prime is 2160293. The reversal of 2160291 is 1920612.

2160291 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2160291 - 2³ = 2160283 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 102871 = 2160291 / (2 + 1 + 6 + 0 + 2 + 9 + 1).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2160293) 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 in 7 ways as a sum of consecutive naturals, for example, 51415 + ... + 51456.

It is an arithmetic number, because the mean of its divisors is an integer number (411488).

2^2160291 is an apocalyptic number.

2160291 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2160291 is a deficient number, since it is larger than the sum of its proper divisors (1131613).

2160291 is a wasteful number, since it uses less digits than its factorization.

2160291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102881.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 2160291 is about 1469.7928425462. The cubic root of 2160291 is about 129.2718861458.

The spelling of 2160291 in words is "two million, one hundred sixty thousand, two hundred ninety-one".