2152320445 has 32 divisors (see below), whose sum is σ = 3012422400. Its totient is φ = 1458877440.

The previous prime is 2152320433. The next prime is 2152320449. The reversal of 2152320445 is 5440232512.

It is not a de Polignac number, because 2152320445 - 2¹¹ = 2152318397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2152320449) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 85131 + ... + 107479.

It is an arithmetic number, because the mean of its divisors is an integer number (94138200).

Almost surely, 2^2152320445 is an apocalyptic number.

It is an amenable number.

2152320445 is a deficient number, since it is larger than the sum of its proper divisors (860101955).

2152320445 is a wasteful number, since it uses less digits than its factorization.

2152320445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22485.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 2152320445 is about 46393.1077316448. The cubic root of 2152320445 is about 1291.1270412054.

Adding to 2152320445 its reverse (5440232512), we get a palindrome (7592552957).

The spelling of 2152320445 in words is "two billion, one hundred fifty-two million, three hundred twenty thousand, four hundred forty-five".