554140243 has 4 divisors (see below), whose sum is σ = 558503680. Its totient is φ = 549776808.

The previous prime is 554140229. The next prime is 554140247. The reversal of 554140243 is 342041455.

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 554140243 - 2²⁵ = 520585811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (554140247) 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 3 ways as a sum of consecutive naturals, for example, 2181528 + ... + 2181781.

It is an arithmetic number, because the mean of its divisors is an integer number (139625920).

Almost surely, 2^554140243 is an apocalyptic number.

554140243 is a deficient number, since it is larger than the sum of its proper divisors (4363437).

554140243 is a wasteful number, since it uses less digits than its factorization.

554140243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4363436.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 554140243 is about 23540.1835804226. The cubic root of 554140243 is about 821.3720056092.

Adding to 554140243 its reverse (342041455), we get a palindrome (896181698).

The spelling of 554140243 in words is "five hundred fifty-four million, one hundred forty thousand, two hundred forty-three".