102117469 has 2 divisors, whose sum is σ = 102117470. Its totient is φ = 102117468.

The previous prime is 102117467. The next prime is 102117479. The reversal of 102117469 is 964711201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99261369 + 2856100 = 9963^2 + 1690^2 .

It is a cyclic number.

It is not a de Polignac number, because 102117469 - 2¹ = 102117467 is a prime.

It is a super-2 number, since 2×102117469² = 20855954949931922, which contains 22 as substring.

Together with 102117467, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 102117469.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102117461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51058734 + 51058735.

It is an arithmetic number, because the mean of its divisors is an integer number (51058735).

Almost surely, 2^102117469 is an apocalyptic number.

It is an amenable number.

102117469 is a deficient number, since it is larger than the sum of its proper divisors (1).

102117469 is an equidigital number, since it uses as much as digits as its factorization.

102117469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 102117469 is about 10105.3188470231. The cubic root of 102117469 is about 467.4121680058.

The spelling of 102117469 in words is "one hundred two million, one hundred seventeen thousand, four hundred sixty-nine".