2154304045 has 4 divisors (see below), whose sum is σ = 2585164860. Its totient is φ = 1723443232.

The previous prime is 2154304001. The next prime is 2154304051. The reversal of 2154304045 is 5404034512.

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 556063561 + 1598240484 = 23581^2 + 39978^2 .

It is a cyclic number.

It is not a de Polignac number, because 2154304045 - 2¹¹ = 2154301997 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215430400 + ... + 215430409.

It is an arithmetic number, because the mean of its divisors is an integer number (646291215).

Almost surely, 2^2154304045 is an apocalyptic number.

It is an amenable number.

2154304045 is a deficient number, since it is larger than the sum of its proper divisors (430860815).

2154304045 is an equidigital number, since it uses as much as digits as its factorization.

2154304045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430860814.

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

The square root of 2154304045 is about 46414.4809838481. The cubic root of 2154304045 is about 1291.5235579408.

Adding to 2154304045 its reverse (5404034512), we get a palindrome (7558338557).

The spelling of 2154304045 in words is "two billion, one hundred fifty-four million, three hundred four thousand, forty-five".