2154045071 has 2 divisors, whose sum is σ = 2154045072. Its totient is φ = 2154045070.

The previous prime is 2154045037. The next prime is 2154045097. The reversal of 2154045071 is 1705404512.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2154045071 - 2⁶ = 2154045007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2154045031) 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, 1077022535 + 1077022536.

It is an arithmetic number, because the mean of its divisors is an integer number (1077022536).

Almost surely, 2^2154045071 is an apocalyptic number.

2154045071 is a deficient number, since it is larger than the sum of its proper divisors (1).

2154045071 is an equidigital number, since it uses as much as digits as its factorization.

2154045071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5600, while the sum is 29.

The square root of 2154045071 is about 46411.6911025660. The cubic root of 2154045071 is about 1291.4718034967.

Adding to 2154045071 its reverse (1705404512), we get a palindrome (3859449583).

The spelling of 2154045071 in words is "two billion, one hundred fifty-four million, forty-five thousand, seventy-one".