102423187 has 2 divisors, whose sum is σ = 102423188. Its totient is φ = 102423186.

The previous prime is 102423151. The next prime is 102423203. The reversal of 102423187 is 781324201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102423187 - 2¹⁵ = 102390419 is a prime.

It is not a weakly prime, because it can be changed into another prime (102423107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51211593 + 51211594.

It is an arithmetic number, because the mean of its divisors is an integer number (51211594).

Almost surely, 2^102423187 is an apocalyptic number.

102423187 is a deficient number, since it is larger than the sum of its proper divisors (1).

102423187 is an equidigital number, since it uses as much as digits as its factorization.

102423187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 102423187 is about 10120.4341310045. The cubic root of 102423187 is about 467.8781475321.

Adding to 102423187 its reverse (781324201), we get a palindrome (883747388).

The spelling of 102423187 in words is "one hundred two million, four hundred twenty-three thousand, one hundred eighty-seven".