101669543 has 2 divisors, whose sum is σ = 101669544. Its totient is φ = 101669542.

The previous prime is 101669539. The next prime is 101669597. The reversal of 101669543 is 345966101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101669543 - 2² = 101669539 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101669143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50834771 + 50834772.

It is an arithmetic number, because the mean of its divisors is an integer number (50834772).

Almost surely, 2^101669543 is an apocalyptic number.

101669543 is a deficient number, since it is larger than the sum of its proper divisors (1).

101669543 is an equidigital number, since it uses as much as digits as its factorization.

101669543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 101669543 is about 10083.1316067976. The cubic root of 101669543 is about 466.7277505642.

The spelling of 101669543 in words is "one hundred one million, six hundred sixty-nine thousand, five hundred forty-three".