102442429 has 2 divisors, whose sum is σ = 102442430. Its totient is φ = 102442428.

The previous prime is 102442427. The next prime is 102442447. The reversal of 102442429 is 924244201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80371225 + 22071204 = 8965^2 + 4698^2 .

It is a cyclic number.

It is not a de Polignac number, because 102442429 - 2¹ = 102442427 is a prime.

Together with 102442427, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 102442397 and 102442406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102442423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51221214 + 51221215.

It is an arithmetic number, because the mean of its divisors is an integer number (51221215).

Almost surely, 2^102442429 is an apocalyptic number.

It is an amenable number.

102442429 is a deficient number, since it is larger than the sum of its proper divisors (1).

102442429 is an equidigital number, since it uses as much as digits as its factorization.

102442429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 102442429 is about 10121.3847372778. The cubic root of 102442429 is about 467.9074454149.

The spelling of 102442429 in words is "one hundred two million, four hundred forty-two thousand, four hundred twenty-nine".