118661225 has 12 divisors (see below), whose sum is σ = 147908316. Its totient is φ = 94433280.

The previous prime is 118661171. The next prime is 118661237. The reversal of 118661225 is 522166811.

It can be written as a sum of positive squares in 6 ways, for example, as 28430224 + 90231001 = 5332^2 + 9499^2 .

It is not a de Polignac number, because 118661225 - 2²² = 114466921 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 118661191 and 118661200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7472 + ... + 17121.

It is an arithmetic number, because the mean of its divisors is an integer number (12325693).

Almost surely, 2^118661225 is an apocalyptic number.

It is an amenable number.

118661225 is a deficient number, since it is larger than the sum of its proper divisors (29247091).

118661225 is a wasteful number, since it uses less digits than its factorization.

118661225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24796 (or 24791 counting only the distinct ones).

The product of its digits is 5760, while the sum is 32.

The square root of 118661225 is about 10893.1733209382. The cubic root of 118661225 is about 491.4012714326.

The spelling of 118661225 in words is "one hundred eighteen million, six hundred sixty-one thousand, two hundred twenty-five".