254145534341543 has 4 divisors (see below), whose sum is σ = 273695190829368. Its totient is φ = 234595877853720.

The previous prime is 254145534341513. The next prime is 254145534341549. The reversal of 254145534341543 is 345143435541452.

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 254145534341543 - 2¹⁴ = 254145534325159 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 (254145534341549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9774828243893 + ... + 9774828243918.

It is an arithmetic number, because the mean of its divisors is an integer number (68423797707342).

Almost surely, 2^{254145534341543} is an apocalyptic number.

254145534341543 is a deficient number, since it is larger than the sum of its proper divisors (19549656487825).

254145534341543 is a wasteful number, since it uses less digits than its factorization.

254145534341543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19549656487824.

The product of its digits is 34560000, while the sum is 53.

Adding to 254145534341543 its reverse (345143435541452), we get a palindrome (599288969882995).

The spelling of 254145534341543 in words is "two hundred fifty-four trillion, one hundred forty-five billion, five hundred thirty-four million, three hundred forty-one thousand, five hundred forty-three".