118587229 has 2 divisors, whose sum is σ = 118587230. Its totient is φ = 118587228.

The previous prime is 118587199. The next prime is 118587239. The reversal of 118587229 is 922785811.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 92679129 + 25908100 = 9627^2 + 5090^2 .

It is a cyclic number.

It is not a de Polignac number, because 118587229 - 2⁵ = 118587197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118587239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59293614 + 59293615.

It is an arithmetic number, because the mean of its divisors is an integer number (59293615).

Almost surely, 2^118587229 is an apocalyptic number.

It is an amenable number.

118587229 is a deficient number, since it is larger than the sum of its proper divisors (1).

118587229 is an equidigital number, since it uses as much as digits as its factorization.

118587229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80640, while the sum is 43.

The square root of 118587229 is about 10889.7763521571. The cubic root of 118587229 is about 491.2991058224.

The spelling of 118587229 in words is "one hundred eighteen million, five hundred eighty-seven thousand, two hundred twenty-nine".