2154524081 has 2 divisors, whose sum is σ = 2154524082. Its totient is φ = 2154524080.

The previous prime is 2154524059. The next prime is 2154524083. The reversal of 2154524081 is 1804254512.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2043853681 + 110670400 = 45209^2 + 10520^2 .

It is a cyclic number.

It is not a de Polignac number, because 2154524081 - 2¹⁴ = 2154507697 is a prime.

It is a super-2 number, since 2×2154524081² = 9283948031217789122, which contains 22 as substring.

Together with 2154524083, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2154524083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1077262040 + 1077262041.

It is an arithmetic number, because the mean of its divisors is an integer number (1077262041).

Almost surely, 2^2154524081 is an apocalyptic number.

It is an amenable number.

2154524081 is a deficient number, since it is larger than the sum of its proper divisors (1).

2154524081 is an equidigital number, since it uses as much as digits as its factorization.

2154524081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12800, while the sum is 32.

The square root of 2154524081 is about 46416.8512611530. The cubic root of 2154524081 is about 1291.5675275937.

Adding to 2154524081 its reverse (1804254512), we get a palindrome (3958778593).

The spelling of 2154524081 in words is "two billion, one hundred fifty-four million, five hundred twenty-four thousand, eighty-one".