2154412441 has 2 divisors, whose sum is σ = 2154412442. Its totient is φ = 2154412440.

The previous prime is 2154412433. The next prime is 2154412471. The reversal of 2154412441 is 1442144512.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1800220041 + 354192400 = 42429^2 + 18820^2 .

It is a cyclic number.

It is not a de Polignac number, because 2154412441 - 2³ = 2154412433 is a prime.

It is not a weakly prime, because it can be changed into another prime (2154412471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1077206220 + 1077206221.

It is an arithmetic number, because the mean of its divisors is an integer number (1077206221).

Almost surely, 2^2154412441 is an apocalyptic number.

It is an amenable number.

2154412441 is a deficient number, since it is larger than the sum of its proper divisors (1).

2154412441 is an equidigital number, since it uses as much as digits as its factorization.

2154412441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5120, while the sum is 28.

The square root of 2154412441 is about 46415.6486650785. The cubic root of 2154412441 is about 1291.5452190182.

Adding to 2154412441 its reverse (1442144512), we get a palindrome (3596556953).

The spelling of 2154412441 in words is "two billion, one hundred fifty-four million, four hundred twelve thousand, four hundred forty-one".