118428077 has 2 divisors, whose sum is σ = 118428078. Its totient is φ = 118428076.

The previous prime is 118428067. The next prime is 118428097. The reversal of 118428077 is 770824811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80802121 + 37625956 = 8989^2 + 6134^2 .

It is a cyclic number.

It is not a de Polignac number, because 118428077 - 2⁸ = 118427821 is a prime.

It is equal to p_6757247 and since 118428077 and 6757247 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 118428077.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118428017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59214038 + 59214039.

It is an arithmetic number, because the mean of its divisors is an integer number (59214039).

Almost surely, 2^118428077 is an apocalyptic number.

It is an amenable number.

118428077 is a deficient number, since it is larger than the sum of its proper divisors (1).

118428077 is an equidigital number, since it uses as much as digits as its factorization.

118428077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25088, while the sum is 38.

The square root of 118428077 is about 10882.4664943201. The cubic root of 118428077 is about 491.0792219970.

The spelling of 118428077 in words is "one hundred eighteen million, four hundred twenty-eight thousand, seventy-seven".