2154535305 has 32 divisors (see below), whose sum is σ = 3907827840. Its totient is φ = 1004866560.

The previous prime is 2154535301. The next prime is 2154535337. The reversal of 2154535305 is 5035354512.

It is a happy number.

It is not a de Polignac number, because 2154535305 - 2² = 2154535301 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2154535301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 287056 + ... + 294465.

It is an arithmetic number, because the mean of its divisors is an integer number (122119620).

Almost surely, 2^2154535305 is an apocalyptic number.

It is an amenable number.

2154535305 is a deficient number, since it is larger than the sum of its proper divisors (1753292535).

2154535305 is a wasteful number, since it uses less digits than its factorization.

2154535305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581561.

The product of its (nonzero) digits is 45000, while the sum is 33.

The square root of 2154535305 is about 46416.9721653621. The cubic root of 2154535305 is about 1291.5697703981.

Adding to 2154535305 its reverse (5035354512), we get a palindrome (7189889817).

The spelling of 2154535305 in words is "two billion, one hundred fifty-four million, five hundred thirty-five thousand, three hundred five".