118428769 has 2 divisors, whose sum is σ = 118428770. Its totient is φ = 118428768.

The previous prime is 118428763. The next prime is 118428797. The reversal of 118428769 is 967824811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 94809169 + 23619600 = 9737^2 + 4860^2 .

It is an emirp because it is prime and its reverse (967824811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 118428769 - 2⁷ = 118428641 is a prime.

It is a super-2 number, since 2×118428769² = 28050746653710722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (118428763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59214384 + 59214385.

It is an arithmetic number, because the mean of its divisors is an integer number (59214385).

Almost surely, 2^118428769 is an apocalyptic number.

It is an amenable number.

118428769 is a deficient number, since it is larger than the sum of its proper divisors (1).

118428769 is an equidigital number, since it uses as much as digits as its factorization.

118428769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 193536, while the sum is 46.

The square root of 118428769 is about 10882.4982885365. The cubic root of 118428769 is about 491.0801784880.

The spelling of 118428769 in words is "one hundred eighteen million, four hundred twenty-eight thousand, seven hundred sixty-nine".