2321455545 has 24 divisors (see below), whose sum is σ = 4172890176. Its totient is φ = 1238108976.

The previous prime is 2321455523. The next prime is 2321455559. The reversal of 2321455545 is 5455541232.

It is not a de Polignac number, because 2321455545 - 2⁹ = 2321455033 is a prime.

It is a super-2 number, since 2×2321455545² = 10778311694822494050, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 954117 + ... + 956546.

It is an arithmetic number, because the mean of its divisors is an integer number (173870424).

Almost surely, 2^2321455545 is an apocalyptic number.

It is an amenable number.

2321455545 is a deficient number, since it is larger than the sum of its proper divisors (1851434631).

2321455545 is an equidigital number, since it uses as much as digits as its factorization.

2321455545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1910683 (or 1910671 counting only the distinct ones).

The product of its digits is 120000, while the sum is 36.

The square root of 2321455545 is about 48181.4855001379. The cubic root of 2321455545 is about 1324.0979824910.

Adding to 2321455545 its reverse (5455541232), we get a palindrome (7776996777).

The spelling of 2321455545 in words is "two billion, three hundred twenty-one million, four hundred fifty-five thousand, five hundred forty-five".