102543131 has 8 divisors (see below), whose sum is σ = 107205120. Its totient is φ = 97898152.

The previous prime is 102543113. The next prime is 102543149. The reversal of 102543131 is 131345201.

It is an interprime number because it is at equal distance from previous prime (102543113) and next prime (102543149).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102543131 is a prime.

It is a super-2 number, since 2×102543131² = 21030187430566322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102543191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8990 + ... + 16908.

It is an arithmetic number, because the mean of its divisors is an integer number (13400640).

Almost surely, 2^102543131 is an apocalyptic number.

102543131 is a deficient number, since it is larger than the sum of its proper divisors (4661989).

102543131 is an equidigital number, since it uses as much as digits as its factorization.

102543131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8505.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 102543131 is about 10126.3582298870. The cubic root of 102543131 is about 468.0607145401.

Adding to 102543131 its reverse (131345201), we get a palindrome (233888332).

The spelling of 102543131 in words is "one hundred two million, five hundred forty-three thousand, one hundred thirty-one".