108418949 has 2 divisors, whose sum is σ = 108418950. Its totient is φ = 108418948.

The previous prime is 108418939. The next prime is 108418951. The reversal of 108418949 is 949814801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 106296100 + 2122849 = 10310^2 + 1457^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-108418949 is a prime.

Together with 108418951, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108418939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54209474 + 54209475.

It is an arithmetic number, because the mean of its divisors is an integer number (54209475).

Almost surely, 2^108418949 is an apocalyptic number.

It is an amenable number.

108418949 is a deficient number, since it is larger than the sum of its proper divisors (1).

108418949 is an equidigital number, since it uses as much as digits as its factorization.

108418949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82944, while the sum is 44.

The square root of 108418949 is about 10412.4420286501. The cubic root of 108418949 is about 476.8352989238.

The spelling of 108418949 in words is "one hundred eight million, four hundred eighteen thousand, nine hundred forty-nine".