2154533959 has 2 divisors, whose sum is σ = 2154533960. Its totient is φ = 2154533958.

The previous prime is 2154533933. The next prime is 2154533989. The reversal of 2154533959 is 9593354512.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2154533959 - 2¹⁵ = 2154501191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2154533989) 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, 1077266979 + 1077266980.

It is an arithmetic number, because the mean of its divisors is an integer number (1077266980).

Almost surely, 2^2154533959 is an apocalyptic number.

2154533959 is a deficient number, since it is larger than the sum of its proper divisors (1).

2154533959 is an equidigital number, since it uses as much as digits as its factorization.

2154533959 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 729000, while the sum is 46.

The square root of 2154533959 is about 46416.9576663529. The cubic root of 2154533959 is about 1291.5695014379.

The spelling of 2154533959 in words is "two billion, one hundred fifty-four million, five hundred thirty-three thousand, nine hundred fifty-nine".