102424447 has 2 divisors, whose sum is σ = 102424448. Its totient is φ = 102424446.

The previous prime is 102424393. The next prime is 102424453. The reversal of 102424447 is 744424201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102424447 - 2⁷ = 102424319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102424457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51212223 + 51212224.

It is an arithmetic number, because the mean of its divisors is an integer number (51212224).

Almost surely, 2^102424447 is an apocalyptic number.

102424447 is a deficient number, since it is larger than the sum of its proper divisors (1).

102424447 is an equidigital number, since it uses as much as digits as its factorization.

102424447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7168, while the sum is 28.

The square root of 102424447 is about 10120.4963811070. The cubic root of 102424447 is about 467.8800661212.

Adding to 102424447 its reverse (744424201), we get a palindrome (846848648).

The spelling of 102424447 in words is "one hundred two million, four hundred twenty-four thousand, four hundred forty-seven".