2145440327 has 2 divisors, whose sum is σ = 2145440328. Its totient is φ = 2145440326.

The previous prime is 2145440291. The next prime is 2145440377. The reversal of 2145440327 is 7230445412.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2145440327 - 2⁸ = 2145440071 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2145440293 and 2145440302.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2145440377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1072720163 + 1072720164.

It is an arithmetic number, because the mean of its divisors is an integer number (1072720164).

Almost surely, 2^2145440327 is an apocalyptic number.

2145440327 is a deficient number, since it is larger than the sum of its proper divisors (1).

2145440327 is an equidigital number, since it uses as much as digits as its factorization.

2145440327 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26880, while the sum is 32.

The square root of 2145440327 is about 46318.8981626290. The cubic root of 2145440327 is about 1289.7498317038.

Adding to 2145440327 its reverse (7230445412), we get a palindrome (9375885739).

The spelling of 2145440327 in words is "two billion, one hundred forty-five million, four hundred forty thousand, three hundred twenty-seven".