102187373 has 2 divisors, whose sum is σ = 102187374. Its totient is φ = 102187372.

The previous prime is 102187363. The next prime is 102187381. The reversal of 102187373 is 373781201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60171049 + 42016324 = 7757^2 + 6482^2 .

It is an emirp because it is prime and its reverse (373781201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102187373 - 2¹⁴ = 102170989 is a prime.

It is a super-2 number, since 2×102187373² = 20884518401282258, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102187343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51093686 + 51093687.

It is an arithmetic number, because the mean of its divisors is an integer number (51093687).

Almost surely, 2^102187373 is an apocalyptic number.

It is an amenable number.

102187373 is a deficient number, since it is larger than the sum of its proper divisors (1).

102187373 is an equidigital number, since it uses as much as digits as its factorization.

102187373 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 102187373 is about 10108.7770279100. Note that the first 3 decimals coincide. The cubic root of 102187373 is about 467.5187985616.

The spelling of 102187373 in words is "one hundred two million, one hundred eighty-seven thousand, three hundred seventy-three".