2194257 has 8 divisors (see below), whose sum is σ = 3150784. Its totient is φ = 1350288.

The previous prime is 2194243. The next prime is 2194261. The reversal of 2194257 is 7524912.

2194257 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 2194257 - 2⁶ = 2194193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2194267) 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, 28093 + ... + 28170.

It is an arithmetic number, because the mean of its divisors is an integer number (393848).

2^2194257 is an apocalyptic number.

It is an amenable number.

2194257 is a deficient number, since it is larger than the sum of its proper divisors (956527).

2194257 is a wasteful number, since it uses less digits than its factorization.

2194257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56279.

The product of its digits is 5040, while the sum is 30.

The square root of 2194257 is about 1481.3024674252. The cubic root of 2194257 is about 129.9458749042.

The spelling of 2194257 in words is "two million, one hundred ninety-four thousand, two hundred fifty-seven".