2320620145 has 4 divisors (see below), whose sum is σ = 2784744180. Its totient is φ = 1856496112.

The previous prime is 2320620091. The next prime is 2320620149. The reversal of 2320620145 is 5410260232.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1306388736 + 1014231409 = 36144^2 + 31847^2 .

It is a cyclic number.

It is not a de Polignac number, because 2320620145 - 2⁷ = 2320620017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2320620149) 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, 232062010 + ... + 232062019.

It is an arithmetic number, because the mean of its divisors is an integer number (696186045).

Almost surely, 2^2320620145 is an apocalyptic number.

It is an amenable number.

2320620145 is a deficient number, since it is larger than the sum of its proper divisors (464124035).

2320620145 is an equidigital number, since it uses as much as digits as its factorization.

2320620145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464124034.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 2320620145 is about 48172.8154149205. The cubic root of 2320620145 is about 1323.9391332768.

Adding to 2320620145 its reverse (5410260232), we get a palindrome (7730880377).

The spelling of 2320620145 in words is "two billion, three hundred twenty million, six hundred twenty thousand, one hundred forty-five".