110771989 has 2 divisors, whose sum is σ = 110771990. Its totient is φ = 110771988.

The previous prime is 110771987. The next prime is 110771993. The reversal of 110771989 is 989177011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61308900 + 49463089 = 7830^2 + 7033^2 .

It is a cyclic number.

It is not a de Polignac number, because 110771989 - 2¹ = 110771987 is a prime.

It is a super-2 number, since 2×110771989² = 24540867094032242, which contains 22 as substring.

Together with 110771987, 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 (110771987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55385994 + 55385995.

It is an arithmetic number, because the mean of its divisors is an integer number (55385995).

Almost surely, 2^110771989 is an apocalyptic number.

It is an amenable number.

110771989 is a deficient number, since it is larger than the sum of its proper divisors (1).

110771989 is an equidigital number, since it uses as much as digits as its factorization.

110771989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31752, while the sum is 43.

The square root of 110771989 is about 10524.8272669911. The cubic root of 110771989 is about 480.2602596121.

The spelling of 110771989 in words is "one hundred ten million, seven hundred seventy-one thousand, nine hundred eighty-nine".