102040187 has 2 divisors, whose sum is σ = 102040188. Its totient is φ = 102040186.

The previous prime is 102040181. The next prime is 102040201. The reversal of 102040187 is 781040201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102040187 - 2¹⁰ = 102039163 is a prime.

It is not a weakly prime, because it can be changed into another prime (102040181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51020093 + 51020094.

It is an arithmetic number, because the mean of its divisors is an integer number (51020094).

Almost surely, 2^102040187 is an apocalyptic number.

102040187 is a deficient number, since it is larger than the sum of its proper divisors (1).

102040187 is an equidigital number, since it uses as much as digits as its factorization.

102040187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 102040187 is about 10101.4942954001. The cubic root of 102040187 is about 467.2942265024.

Adding to 102040187 its reverse (781040201), we get a palindrome (883080388).

The spelling of 102040187 in words is "one hundred two million, forty thousand, one hundred eighty-seven".