114778861 has 2 divisors, whose sum is σ = 114778862. Its totient is φ = 114778860.

The previous prime is 114778843. The next prime is 114778877. The reversal of 114778861 is 168877411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79316836 + 35462025 = 8906^2 + 5955^2 .

It is a cyclic number.

It is not a de Polignac number, because 114778861 - 2¹¹ = 114776813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (114778801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57389430 + 57389431.

It is an arithmetic number, because the mean of its divisors is an integer number (57389431).

Almost surely, 2^114778861 is an apocalyptic number.

It is an amenable number.

114778861 is a deficient number, since it is larger than the sum of its proper divisors (1).

114778861 is an equidigital number, since it uses as much as digits as its factorization.

114778861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 75264, while the sum is 43.

The square root of 114778861 is about 10713.4896742378. The cubic root of 114778861 is about 485.9825068359.

It can be divided in two parts, 1147 and 78861, that added together give a palindrome (80008).

The spelling of 114778861 in words is "one hundred fourteen million, seven hundred seventy-eight thousand, eight hundred sixty-one".