104543531 has 2 divisors, whose sum is σ = 104543532. Its totient is φ = 104543530.

The previous prime is 104543497. The next prime is 104543539. The reversal of 104543531 is 135345401.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 104543531 - 2¹⁰ = 104542507 is a prime.

It is a super-2 number, since 2×104543531² = 21858699747895922, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 104543531.

It is not a weakly prime, because it can be changed into another prime (104543539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52271765 + 52271766.

It is an arithmetic number, because the mean of its divisors is an integer number (52271766).

Almost surely, 2^104543531 is an apocalyptic number.

104543531 is a deficient number, since it is larger than the sum of its proper divisors (1).

104543531 is an equidigital number, since it uses as much as digits as its factorization.

104543531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 104543531 is about 10224.6530992499. The cubic root of 104543531 is about 471.0847601781.

Adding to 104543531 its reverse (135345401), we get a palindrome (239888932).

The spelling of 104543531 in words is "one hundred four million, five hundred forty-three thousand, five hundred thirty-one".