108551977 has 2 divisors, whose sum is σ = 108551978. Its totient is φ = 108551976.

The previous prime is 108551957. The next prime is 108551983. The reversal of 108551977 is 779155801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 91087936 + 17464041 = 9544^2 + 4179^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-108551977 is a prime.

It is not a weakly prime, because it can be changed into another prime (108551957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54275988 + 54275989.

It is an arithmetic number, because the mean of its divisors is an integer number (54275989).

Almost surely, 2^108551977 is an apocalyptic number.

It is an amenable number.

108551977 is a deficient number, since it is larger than the sum of its proper divisors (1).

108551977 is an equidigital number, since it uses as much as digits as its factorization.

108551977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 88200, while the sum is 43.

The square root of 108551977 is about 10418.8280051069. The cubic root of 108551977 is about 477.0302418464.

The spelling of 108551977 in words is "one hundred eight million, five hundred fifty-one thousand, nine hundred seventy-seven".