2155534043 has 8 divisors (see below), whose sum is σ = 2339624448. Its totient is φ = 1974055104.

The previous prime is 2155534019. The next prime is 2155534093. The reversal of 2155534043 is 3404355512.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2155534043 - 2²⁰ = 2154485467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2155534013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 651146 + ... + 654447.

It is an arithmetic number, because the mean of its divisors is an integer number (292453056).

Almost surely, 2^2155534043 is an apocalyptic number.

2155534043 is a deficient number, since it is larger than the sum of its proper divisors (184090405).

2155534043 is a wasteful number, since it uses less digits than its factorization.

2155534043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1305733.

The product of its (nonzero) digits is 36000, while the sum is 32.

The square root of 2155534043 is about 46427.7292466474. The cubic root of 2155534043 is about 1291.7693092561.

Adding to 2155534043 its reverse (3404355512), we get a palindrome (5559889555).

The spelling of 2155534043 in words is "two billion, one hundred fifty-five million, five hundred thirty-four thousand, forty-three".