108648469 has 2 divisors, whose sum is σ = 108648470. Its totient is φ = 108648468.

The previous prime is 108648467. The next prime is 108648493. The reversal of 108648469 is 964846801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 102212100 + 6436369 = 10110^2 + 2537^2 .

It is an emirp because it is prime and its reverse (964846801) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 108648469 - 2¹ = 108648467 is a prime.

It is a super-2 number, since 2×108648469² = 23608979632087922, which contains 22 as substring.

Together with 108648467, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108648461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54324234 + 54324235.

It is an arithmetic number, because the mean of its divisors is an integer number (54324235).

Almost surely, 2^108648469 is an apocalyptic number.

It is an amenable number.

108648469 is a deficient number, since it is larger than the sum of its proper divisors (1).

108648469 is an equidigital number, since it uses as much as digits as its factorization.

108648469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 331776, while the sum is 46.

The square root of 108648469 is about 10423.4576317074. The cubic root of 108648469 is about 477.1715442637.

The spelling of 108648469 in words is "one hundred eight million, six hundred forty-eight thousand, four hundred sixty-nine".