2215487071 has 4 divisors (see below), whose sum is σ = 2531985232. Its totient is φ = 1898988912.

The previous prime is 2215487017. The next prime is 2215487093. The reversal of 2215487071 is 1707845122.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1707845122 = 2 ⋅853922561.

It is a cyclic number.

It is not a de Polignac number, because 2215487071 - 2²⁵ = 2181932639 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2215487071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2215487671) 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, 158249070 + ... + 158249083.

It is an arithmetic number, because the mean of its divisors is an integer number (632996308).

Almost surely, 2^2215487071 is an apocalyptic number.

2215487071 is a deficient number, since it is larger than the sum of its proper divisors (316498161).

2215487071 is an equidigital number, since it uses as much as digits as its factorization.

2215487071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316498160.

The product of its (nonzero) digits is 31360, while the sum is 37.

The square root of 2215487071 is about 47068.9608022102. The cubic root of 2215487071 is about 1303.6361849591.

The spelling of 2215487071 in words is "two billion, two hundred fifteen million, four hundred eighty-seven thousand, seventy-one".