118177125361 has 3 divisors (see below), whose sum is σ = 118177469131. Its totient is φ = 118176781592.

The previous prime is 118177125359. The next prime is 118177125371. The reversal of 118177125361 is 163521771811.

The square root of 118177125361 is 343769.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 17561285361 + 100615840000 = 132519^2 + 317200^2 .

It is not a de Polignac number, because 118177125361 - 2¹ = 118177125359 is a prime.

It is a super-3 number, since 3×118177125361³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118177125301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 171885 + ... + 515653.

Almost surely, 2^118177125361 is an apocalyptic number.

118177125361 is the 343769-th square number.

118177125361 is the 171885-th centered octagonal number.

It is an amenable number.

118177125361 is a deficient number, since it is larger than the sum of its proper divisors (343770).

118177125361 is an frugal number, since it uses more digits than its factorization.

118177125361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687538 (or 343769 counting only the distinct ones).

The product of its digits is 70560, while the sum is 43.

The spelling of 118177125361 in words is "one hundred eighteen billion, one hundred seventy-seven million, one hundred twenty-five thousand, three hundred sixty-one".