118390657 has 16 divisors (see below), whose sum is σ = 151208064. Its totient is φ = 90000000.

The previous prime is 118390651. The next prime is 118390667. The reversal of 118390657 is 756093811.

It is a cyclic number.

It is not a de Polignac number, because 118390657 - 2¹⁹ = 117866369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (118390651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15594 + ... + 21907.

It is an arithmetic number, because the mean of its divisors is an integer number (9450504).

Almost surely, 2^118390657 is an apocalyptic number.

It is an amenable number.

118390657 is a deficient number, since it is larger than the sum of its proper divisors (32817407).

118390657 is a wasteful number, since it uses less digits than its factorization.

118390657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37560.

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 118390657 is about 10880.7470791302. The cubic root of 118390657 is about 491.0274940601.

The spelling of 118390657 in words is "one hundred eighteen million, three hundred ninety thousand, six hundred fifty-seven".