100322543 has 4 divisors (see below), whose sum is σ = 100444680. Its totient is φ = 100200408.

The previous prime is 100322539. The next prime is 100322549. The reversal of 100322543 is 345223001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 345223001 = 1373 ⋅251437.

It is a cyclic number.

It is not a de Polignac number, because 100322543 - 2² = 100322539 is a prime.

It is a super-2 number, since 2×100322543² = 20129225267973698, 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 (100322549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59828 + ... + 61481.

It is an arithmetic number, because the mean of its divisors is an integer number (25111170).

Almost surely, 2^100322543 is an apocalyptic number.

100322543 is a deficient number, since it is larger than the sum of its proper divisors (122137).

100322543 is an equidigital number, since it uses as much as digits as its factorization.

100322543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122136.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 100322543 is about 10016.1141666816. The cubic root of 100322543 is about 464.6573851130.

Adding to 100322543 its reverse (345223001), we get a palindrome (445545544).

The spelling of 100322543 in words is "one hundred million, three hundred twenty-two thousand, five hundred forty-three".