2231087 has 2 divisors, whose sum is σ = 2231088. Its totient is φ = 2231086.

The previous prime is 2231077. The next prime is 2231093. The reversal of 2231087 is 7801322.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2231087 - 2¹⁶ = 2165551 is a prime.

It is a super-3 number, since 3×2231087³ = 33317374598642926509, which contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2231027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1115543 + 1115544.

It is an arithmetic number, because the mean of its divisors is an integer number (1115544).

2^2231087 is an apocalyptic number.

2231087 is a deficient number, since it is larger than the sum of its proper divisors (1).

2231087 is an equidigital number, since it uses as much as digits as its factorization.

2231087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 2231087 is about 1493.6823624854. The cubic root of 2231087 is about 130.6688799720.

The spelling of 2231087 in words is "two million, two hundred thirty-one thousand, eighty-seven".