118764161 has 2 divisors, whose sum is σ = 118764162. Its totient is φ = 118764160.

The previous prime is 118764143. The next prime is 118764169. The reversal of 118764161 is 161467811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115433536 + 3330625 = 10744^2 + 1825^2 .

It is an emirp because it is prime and its reverse (161467811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 118764161 - 2¹⁰ = 118763137 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (118764169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59382080 + 59382081.

It is an arithmetic number, because the mean of its divisors is an integer number (59382081).

Almost surely, 2^118764161 is an apocalyptic number.

It is an amenable number.

118764161 is a deficient number, since it is larger than the sum of its proper divisors (1).

118764161 is an equidigital number, since it uses as much as digits as its factorization.

118764161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 35.

The square root of 118764161 is about 10897.8970907235. The cubic root of 118764161 is about 491.5433236259.

The spelling of 118764161 in words is "one hundred eighteen million, seven hundred sixty-four thousand, one hundred sixty-one".