2241691 has 2 divisors, whose sum is σ = 2241692. Its totient is φ = 2241690.

The previous prime is 2241667. The next prime is 2241697. The reversal of 2241691 is 1961422.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2241691 - 2¹³ = 2233499 is a prime.

2241691 is a lucky number.

It is equal to p₁₆₅₅₁₇ and since 2241691 and 165517 have the same sum of digits, it is a Honaker prime.

It is a plaindrome in base 16.

It is not a weakly prime, because it can be changed into another prime (2241697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1120845 + 1120846.

It is an arithmetic number, because the mean of its divisors is an integer number (1120846).

2^2241691 is an apocalyptic number.

2241691 is a deficient number, since it is larger than the sum of its proper divisors (1).

2241691 is an equidigital number, since it uses as much as digits as its factorization.

2241691 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864, while the sum is 25.

The square root of 2241691 is about 1497.2277715832. The cubic root of 2241691 is about 130.8755689660.

The spelling of 2241691 in words is "two million, two hundred forty-one thousand, six hundred ninety-one".