102412543 has 4 divisors (see below), whose sum is σ = 105944040. Its totient is φ = 98881048.

The previous prime is 102412517. The next prime is 102412549. The reversal of 102412543 is 345214201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 345214201 = 47 ⋅7344983.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102412543 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 (102412549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1765705 + ... + 1765762.

It is an arithmetic number, because the mean of its divisors is an integer number (26486010).

Almost surely, 2^102412543 is an apocalyptic number.

102412543 is a deficient number, since it is larger than the sum of its proper divisors (3531497).

102412543 is an equidigital number, since it uses as much as digits as its factorization.

102412543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3531496.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 102412543 is about 10119.9082505722. The cubic root of 102412543 is about 467.8619393938.

Adding to 102412543 its reverse (345214201), we get a palindrome (447626744).

The spelling of 102412543 in words is "one hundred two million, four hundred twelve thousand, five hundred forty-three".