102023447 has 2 divisors, whose sum is σ = 102023448. Its totient is φ = 102023446.

The previous prime is 102023437. The next prime is 102023501. The reversal of 102023447 is 744320201.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102023447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102023437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51011723 + 51011724.

It is an arithmetic number, because the mean of its divisors is an integer number (51011724).

Almost surely, 2^102023447 is an apocalyptic number.

102023447 is a deficient number, since it is larger than the sum of its proper divisors (1).

102023447 is an equidigital number, since it uses as much as digits as its factorization.

102023447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 102023447 is about 10100.6656711328. The cubic root of 102023447 is about 467.2686714298.

Adding to 102023447 its sum of digits (23), we get a triangular number (102023470 = T₁₄₂₈₄).

Adding to 102023447 its reverse (744320201), we get a palindrome (846343648).

The spelling of 102023447 in words is "one hundred two million, twenty-three thousand, four hundred forty-seven".