118705257 has 56 divisors (see below), whose sum is σ = 197369568. Its totient is φ = 70761600.

The previous prime is 118705253. The next prime is 118705283. The reversal of 118705257 is 752507811.

It is not a de Polignac number, because 118705257 - 2² = 118705253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118705253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 906082 + ... + 906212.

Almost surely, 2^118705257 is an apocalyptic number.

It is an amenable number.

118705257 is a deficient number, since it is larger than the sum of its proper divisors (78664311).

118705257 is a wasteful number, since it uses less digits than its factorization.

118705257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273 (or 258 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 36.

The square root of 118705257 is about 10895.1942157999. The cubic root of 118705257 is about 491.4620458628.

The spelling of 118705257 in words is "one hundred eighteen million, seven hundred five thousand, two hundred fifty-seven".