102001543 has 8 divisors (see below), whose sum is σ = 116669088. Its totient is φ = 87357984.

The previous prime is 102001541. The next prime is 102001553. The reversal of 102001543 is 345100201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 102001543 - 2¹ = 102001541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102001541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4305 + ... + 14917.

It is an arithmetic number, because the mean of its divisors is an integer number (14583636).

Almost surely, 2^102001543 is an apocalyptic number.

102001543 is a deficient number, since it is larger than the sum of its proper divisors (14667545).

102001543 is a wasteful number, since it uses less digits than its factorization.

102001543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11993.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 102001543 is about 10099.5813279561. The cubic root of 102001543 is about 467.2352288378.

Adding to 102001543 its reverse (345100201), we get a palindrome (447101744).

The spelling of 102001543 in words is "one hundred two million, one thousand, five hundred forty-three".