5642191 has 2 divisors, whose sum is σ = 5642192. Its totient is φ = 5642190.

The previous prime is 5642099. The next prime is 5642227. The reversal of 5642191 is 1912465.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5642191 - 2⁹ = 5641679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5642591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2821095 + 2821096.

It is an arithmetic number, because the mean of its divisors is an integer number (2821096).

Almost surely, 2^5642191 is an apocalyptic number.

5642191 is a deficient number, since it is larger than the sum of its proper divisors (1).

5642191 is an equidigital number, since it uses as much as digits as its factorization.

5642191 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 28.

The square root of 5642191 is about 2375.3296613312. The cubic root of 5642191 is about 178.0256559409.

The spelling of 5642191 in words is "five million, six hundred forty-two thousand, one hundred ninety-one".