2154043535 has 16 divisors (see below), whose sum is σ = 2963630592. Its totient is φ = 1472301600.

The previous prime is 2154043517. The next prime is 2154043537. The reversal of 2154043535 is 5353404512.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-2154043535 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154043537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88061 + ... + 109830.

It is an arithmetic number, because the mean of its divisors is an integer number (185226912).

Almost surely, 2^2154043535 is an apocalyptic number.

2154043535 is a deficient number, since it is larger than the sum of its proper divisors (809587057).

2154043535 is a wasteful number, since it uses less digits than its factorization.

2154043535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198214.

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

The square root of 2154043535 is about 46411.6745550082. The cubic root of 2154043535 is about 1291.4714965236.

The spelling of 2154043535 in words is "two billion, one hundred fifty-four million, forty-three thousand, five hundred thirty-five".