118778941 has 2 divisors, whose sum is σ = 118778942. Its totient is φ = 118778940.

The previous prime is 118778797. The next prime is 118778951. The reversal of 118778941 is 149877811.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 116186841 + 2592100 = 10779^2 + 1610^2 .

It is a cyclic number.

It is not a de Polignac number, because 118778941 - 2²⁵ = 85224509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 118778891 and 118778900.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118778951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59389470 + 59389471.

It is an arithmetic number, because the mean of its divisors is an integer number (59389471).

Almost surely, 2^118778941 is an apocalyptic number.

It is an amenable number.

118778941 is a deficient number, since it is larger than the sum of its proper divisors (1).

118778941 is an equidigital number, since it uses as much as digits as its factorization.

118778941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 112896, while the sum is 46.

The square root of 118778941 is about 10898.5751821052. The cubic root of 118778941 is about 491.5637133600.

The spelling of 118778941 in words is "one hundred eighteen million, seven hundred seventy-eight thousand, nine hundred forty-one".