4154542543 has 4 divisors (see below), whose sum is σ = 4158735808. Its totient is φ = 4150349280.

The previous prime is 4154542541. The next prime is 4154542559. The reversal of 4154542543 is 3452454514.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4154542543 - 2¹ = 4154542541 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 (4154542541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2095146 + ... + 2097127.

It is an arithmetic number, because the mean of its divisors is an integer number (1039683952).

Almost surely, 2^4154542543 is an apocalyptic number.

4154542543 is a deficient number, since it is larger than the sum of its proper divisors (4193265).

4154542543 is an equidigital number, since it uses as much as digits as its factorization.

4154542543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4193264.

The product of its digits is 192000, while the sum is 37.

The square root of 4154542543 is about 64455.7409623068. The cubic root of 4154542543 is about 1607.5866963683.

The spelling of 4154542543 in words is "four billion, one hundred fifty-four million, five hundred forty-two thousand, five hundred forty-three".