2154131041 has 2 divisors, whose sum is σ = 2154131042. Its totient is φ = 2154131040.

The previous prime is 2154131039. The next prime is 2154131059. The reversal of 2154131041 is 1401314512.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1434818641 + 719312400 = 37879^2 + 26820^2 .

It is a cyclic number.

It is not a de Polignac number, because 2154131041 - 2¹ = 2154131039 is a prime.

Together with 2154131039, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2154131141) 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 as a sum of consecutive naturals, namely, 1077065520 + 1077065521.

It is an arithmetic number, because the mean of its divisors is an integer number (1077065521).

Almost surely, 2^2154131041 is an apocalyptic number.

It is an amenable number.

2154131041 is a deficient number, since it is larger than the sum of its proper divisors (1).

2154131041 is an equidigital number, since it uses as much as digits as its factorization.

2154131041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 2154131041 is about 46412.6172608268. The cubic root of 2154131041 is about 1291.4889845599.

Adding to 2154131041 its reverse (1401314512), we get a palindrome (3555445553).

The spelling of 2154131041 in words is "two billion, one hundred fifty-four million, one hundred thirty-one thousand, forty-one".