2145363247 has 6 divisors (see below), whose sum is σ = 2221893128. Its totient is φ = 2071384392.

The previous prime is 2145363223. The next prime is 2145363281. The reversal of 2145363247 is 7423635412.

It is not a de Polignac number, because 2145363247 - 2¹¹ = 2145361199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145363217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1274643 + ... + 1276324.

Almost surely, 2^2145363247 is an apocalyptic number.

2145363247 is a deficient number, since it is larger than the sum of its proper divisors (76529881).

2145363247 is an equidigital number, since it uses as much as digits as its factorization.

2145363247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2551025 (or 2550996 counting only the distinct ones).

The product of its digits is 120960, while the sum is 37.

The square root of 2145363247 is about 46318.0660973664. The cubic root of 2145363247 is about 1289.7343857514.

Adding to 2145363247 its reverse (7423635412), we get a palindrome (9568998659).

The spelling of 2145363247 in words is "two billion, one hundred forty-five million, three hundred sixty-three thousand, two hundred forty-seven".