118127813 has 2 divisors, whose sum is σ = 118127814. Its totient is φ = 118127812.

The previous prime is 118127803. The next prime is 118127843. The reversal of 118127813 is 318721811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 109139809 + 8988004 = 10447^2 + 2998^2 .

It is a cyclic number.

It is not a de Polignac number, because 118127813 - 2⁶ = 118127749 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 118127813.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118127803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59063906 + 59063907.

It is an arithmetic number, because the mean of its divisors is an integer number (59063907).

Almost surely, 2^118127813 is an apocalyptic number.

It is an amenable number.

118127813 is a deficient number, since it is larger than the sum of its proper divisors (1).

118127813 is an equidigital number, since it uses as much as digits as its factorization.

118127813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2688, while the sum is 32.

The square root of 118127813 is about 10868.6619691662. The cubic root of 118127813 is about 490.6638413162.

The spelling of 118127813 in words is "one hundred eighteen million, one hundred twenty-seven thousand, eight hundred thirteen".