2192291 has 4 divisors (see below), whose sum is σ = 2287632. Its totient is φ = 2096952.

The previous prime is 2192273. The next prime is 2192293. The reversal of 2192291 is 1922912.

It is a happy number.

2192291 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 cyclic number.

It is not a de Polignac number, because 2192291 - 2¹⁴ = 2175907 is a prime.

It is a super-2 number, since 2×2192291² = 9612279657362, which contains 22 as substring.

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 2192291.

It is not an unprimeable number, because it can be changed into a prime (2192293) 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 3 ways as a sum of consecutive naturals, for example, 47636 + ... + 47681.

It is an arithmetic number, because the mean of its divisors is an integer number (571908).

2^2192291 is an apocalyptic number.

2192291 is a deficient number, since it is larger than the sum of its proper divisors (95341).

2192291 is an equidigital number, since it uses as much as digits as its factorization.

2192291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95340.

The product of its digits is 648, while the sum is 26.

The square root of 2192291 is about 1480.6387135287. The cubic root of 2192291 is about 129.9070538777.

The spelling of 2192291 in words is "two million, one hundred ninety-two thousand, two hundred ninety-one".