102442443 has 4 divisors (see below), whose sum is σ = 136589928. Its totient is φ = 68294960.

The previous prime is 102442429. The next prime is 102442447. The reversal of 102442443 is 344244201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102442443 - 2⁴ = 102442427 is a prime.

It is a super-3 number, since 3×102442443³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (102442447) 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, 17073738 + ... + 17073743.

It is an arithmetic number, because the mean of its divisors is an integer number (34147482).

Almost surely, 2^102442443 is an apocalyptic number.

102442443 is a deficient number, since it is larger than the sum of its proper divisors (34147485).

102442443 is an equidigital number, since it uses as much as digits as its factorization.

102442443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34147484.

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 102442443 is about 10121.3854288827. The cubic root of 102442443 is about 467.9074667299.

Adding to 102442443 its reverse (344244201), we get a palindrome (446686644).

The spelling of 102442443 in words is "one hundred two million, four hundred forty-two thousand, four hundred forty-three".