2271512587 has 2 divisors, whose sum is σ = 2271512588. Its totient is φ = 2271512586.

The previous prime is 2271512561. The next prime is 2271512629. The reversal of 2271512587 is 7852151722.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2271512587 - 2²³ = 2263123979 is a prime.

It is not a weakly prime, because it can be changed into another prime (2271512687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1135756293 + 1135756294.

It is an arithmetic number, because the mean of its divisors is an integer number (1135756294).

Almost surely, 2^2271512587 is an apocalyptic number.

2271512587 is a deficient number, since it is larger than the sum of its proper divisors (1).

2271512587 is an equidigital number, since it uses as much as digits as its factorization.

2271512587 is an evil number, because the sum of its binary digits is even.

The product of its digits is 78400, while the sum is 40.

The square root of 2271512587 is about 47660.3880282148. The cubic root of 2271512587 is about 1314.5336743769.

The spelling of 2271512587 in words is "two billion, two hundred seventy-one million, five hundred twelve thousand, five hundred eighty-seven".