102549943 has 2 divisors, whose sum is σ = 102549944. Its totient is φ = 102549942.

The previous prime is 102549913. The next prime is 102549949. The reversal of 102549943 is 349945201.

It is a strong prime.

It is an emirp because it is prime and its reverse (349945201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102549943 - 2⁹ = 102549431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102549949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51274971 + 51274972.

It is an arithmetic number, because the mean of its divisors is an integer number (51274972).

Almost surely, 2^102549943 is an apocalyptic number.

102549943 is a deficient number, since it is larger than the sum of its proper divisors (1).

102549943 is an equidigital number, since it uses as much as digits as its factorization.

102549943 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 102549943 is about 10126.6945742429. The cubic root of 102549943 is about 468.0710788260.

The spelling of 102549943 in words is "one hundred two million, five hundred forty-nine thousand, nine hundred forty-three".