2215398547 has 2 divisors, whose sum is σ = 2215398548. Its totient is φ = 2215398546.

The previous prime is 2215398529. The next prime is 2215398593. The reversal of 2215398547 is 7458935122.

It is an a-pointer prime, because the next prime (2215398593) can be obtained adding 2215398547 to its sum of digits (46).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2215398547 - 2¹¹ = 2215396499 is a prime.

It is a super-2 number, since 2×2215398547² = 9815981444099422418, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2215398497 and 2215398506.

It is not a weakly prime, because it can be changed into another prime (2215398517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1107699273 + 1107699274.

It is an arithmetic number, because the mean of its divisors is an integer number (1107699274).

Almost surely, 2^2215398547 is an apocalyptic number.

2215398547 is a deficient number, since it is larger than the sum of its proper divisors (1).

2215398547 is an equidigital number, since it uses as much as digits as its factorization.

2215398547 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 604800, while the sum is 46.

The square root of 2215398547 is about 47068.0204278871. The cubic root of 2215398547 is about 1303.6188216401.

The spelling of 2215398547 in words is "two billion, two hundred fifteen million, three hundred ninety-eight thousand, five hundred forty-seven".