102405043 has 6 divisors (see below), whose sum is σ = 110888484. Its totient is φ = 94527576.

The previous prime is 102404987. The next prime is 102405049. The reversal of 102405043 is 340504201.

It is a de Polignac number, because none of the positive numbers 2^k-102405043 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102405043.

It is not an unprimeable number, because it can be changed into a prime (102405049) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 302805 + ... + 303142.

It is an arithmetic number, because the mean of its divisors is an integer number (18481414).

Almost surely, 2^102405043 is an apocalyptic number.

102405043 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

102405043 is a deficient number, since it is larger than the sum of its proper divisors (8483441).

102405043 is an equidigital number, since it uses as much as digits as its factorization.

102405043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605973 (or 605960 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 102405043 is about 10119.5376870685. The cubic root of 102405043 is about 467.8505181033.

Adding to 102405043 its reverse (340504201), we get a palindrome (442909244).

The spelling of 102405043 in words is "one hundred two million, four hundred five thousand, forty-three".