102987719 has 2 divisors, whose sum is σ = 102987720. Its totient is φ = 102987718.

The previous prime is 102987697. The next prime is 102987739. The reversal of 102987719 is 917789201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102987719 - 2²⁴ = 86210503 is a prime.

It is a super-2 number, since 2×102987719² = 21212940529645922, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102987719.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102987739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51493859 + 51493860.

It is an arithmetic number, because the mean of its divisors is an integer number (51493860).

Almost surely, 2^102987719 is an apocalyptic number.

102987719 is a deficient number, since it is larger than the sum of its proper divisors (1).

102987719 is an equidigital number, since it uses as much as digits as its factorization.

102987719 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63504, while the sum is 44.

The square root of 102987719 is about 10148.2865056127. The cubic root of 102987719 is about 468.7361836757.

The spelling of 102987719 in words is "one hundred two million, nine hundred eighty-seven thousand, seven hundred nineteen".