102443147 has 4 divisors (see below), whose sum is σ = 102553416. Its totient is φ = 102332880.

The previous prime is 102443141. The next prime is 102443177. The reversal of 102443147 is 741344201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 741344201 = 13 ⋅57026477.

It is a cyclic number.

It is not a de Polignac number, because 102443147 - 2⁸ = 102442891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102443141) 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, 53729 + ... + 55602.

It is an arithmetic number, because the mean of its divisors is an integer number (25638354).

Almost surely, 2^102443147 is an apocalyptic number.

102443147 is a deficient number, since it is larger than the sum of its proper divisors (110269).

102443147 is an equidigital number, since it uses as much as digits as its factorization.

102443147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110268.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 102443147 is about 10121.4202066706. The cubic root of 102443147 is about 467.9085385712.

Adding to 102443147 its reverse (741344201), we get a palindrome (843787348).

The spelling of 102443147 in words is "one hundred two million, four hundred forty-three thousand, one hundred forty-seven".