2194057 has 4 divisors (see below), whose sum is σ = 2199316. Its totient is φ = 2188800.

The previous prime is 2194051. The next prime is 2194069. The reversal of 2194057 is 7504912.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1610361 + 583696 = 1269^2 + 764^2 .

It is a cyclic number.

It is not a de Polignac number, because 2194057 - 2⁷ = 2193929 is a prime.

It is a super-2 number, since 2×2194057² = 9627772238498, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2194051) 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, 1944 + ... + 2857.

It is an arithmetic number, because the mean of its divisors is an integer number (549829).

2^2194057 is an apocalyptic number.

It is an amenable number.

2194057 is a deficient number, since it is larger than the sum of its proper divisors (5259).

2194057 is an equidigital number, since it uses as much as digits as its factorization.

2194057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5258.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 2194057 is about 1481.2349577295. The cubic root of 2194057 is about 129.9419267242.

Adding to 2194057 its reverse (7504912), we get a palindrome (9698969).

The spelling of 2194057 in words is "two million, one hundred ninety-four thousand, fifty-seven".