543140431 has 4 divisors (see below), whose sum is σ = 543711312. Its totient is φ = 542569552.

The previous prime is 543140419. The next prime is 543140447. The reversal of 543140431 is 134041345.

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 543140431 - 2⁵ = 543140399 is a prime.

It is a super-2 number, since 2×543140431² = 590003055573731522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 543140396 and 543140405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (543140461) 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, 284011 + ... + 285916.

It is an arithmetic number, because the mean of its divisors is an integer number (135927828).

Almost surely, 2^543140431 is an apocalyptic number.

543140431 is a deficient number, since it is larger than the sum of its proper divisors (570881).

543140431 is an equidigital number, since it uses as much as digits as its factorization.

543140431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570880.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 543140431 is about 23305.3734361842. The cubic root of 543140431 is about 815.9008348792.

Adding to 543140431 its reverse (134041345), we get a palindrome (677181776).

The spelling of 543140431 in words is "five hundred forty-three million, one hundred forty thousand, four hundred thirty-one".