2154513433 has 2 divisors, whose sum is σ = 2154513434. Its totient is φ = 2154513432.

The previous prime is 2154513421. The next prime is 2154513437. The reversal of 2154513433 is 3343154512.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1302632464 + 851880969 = 36092^2 + 29187^2 .

It is a cyclic number.

It is not a de Polignac number, because 2154513433 - 2¹⁷ = 2154382361 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2154513395 and 2154513404.

It is not a weakly prime, because it can be changed into another prime (2154513437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1077256716 + 1077256717.

It is an arithmetic number, because the mean of its divisors is an integer number (1077256717).

Almost surely, 2^2154513433 is an apocalyptic number.

It is an amenable number.

2154513433 is a deficient number, since it is larger than the sum of its proper divisors (1).

2154513433 is an equidigital number, since it uses as much as digits as its factorization.

2154513433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21600, while the sum is 31.

The square root of 2154513433 is about 46416.7365612879. The cubic root of 2154513433 is about 1291.5653998796.

Adding to 2154513433 its reverse (3343154512), we get a palindrome (5497667945).

The spelling of 2154513433 in words is "two billion, one hundred fifty-four million, five hundred thirteen thousand, four hundred thirty-three".