542534431 has 4 divisors (see below), whose sum is σ = 543394864. Its totient is φ = 541674000.

The previous prime is 542534429. The next prime is 542534459. The reversal of 542534431 is 134435245.

542534431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 542534431 - 2¹ = 542534429 is a prime.

It is a super-2 number, since 2×542534431² = 588687217640987522, 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 = 542534393 and 542534402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542534831) 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, 429270 + ... + 430531.

It is an arithmetic number, because the mean of its divisors is an integer number (135848716).

Almost surely, 2^542534431 is an apocalyptic number.

542534431 is a deficient number, since it is larger than the sum of its proper divisors (860433).

542534431 is an equidigital number, since it uses as much as digits as its factorization.

542534431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 860432.

The product of its digits is 28800, while the sum is 31.

The square root of 542534431 is about 23292.3685141722. The cubic root of 542534431 is about 815.5972793111.

Adding to 542534431 its reverse (134435245), we get a palindrome (676969676).

The spelling of 542534431 in words is "five hundred forty-two million, five hundred thirty-four thousand, four hundred thirty-one".