4542545431 has 4 divisors (see below), whose sum is σ = 4653339264. Its totient is φ = 4431751600.

The previous prime is 4542545407. The next prime is 4542545443. The reversal of 4542545431 is 1345452454.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4542545431 is a prime.

It is a super-2 number, since 2×4542545431² = 41269437985397951522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4542545831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55396855 + ... + 55396936.

It is an arithmetic number, because the mean of its divisors is an integer number (1163334816).

Almost surely, 2^4542545431 is an apocalyptic number.

4542545431 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

4542545431 is a deficient number, since it is larger than the sum of its proper divisors (110793833).

4542545431 is a wasteful number, since it uses less digits than its factorization.

4542545431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110793832.

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

The square root of 4542545431 is about 67398.4082230434. The cubic root of 4542545431 is about 1656.1503466022.

Adding to 4542545431 its reverse (1345452454), we get a palindrome (5887997885).

The spelling of 4542545431 in words is "four billion, five hundred forty-two million, five hundred forty-five thousand, four hundred thirty-one".