118161593 has 4 divisors (see below), whose sum is σ = 128903568. Its totient is φ = 107419620.

The previous prime is 118161587. The next prime is 118161647. The reversal of 118161593 is 395161811.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 395161811 = 11 ⋅35923801.

It is not a de Polignac number, because 118161593 - 2¹⁶ = 118096057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118161503) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 5370971 + ... + 5370992.

It is an arithmetic number, because the mean of its divisors is an integer number (32225892).

Almost surely, 2^118161593 is an apocalyptic number.

It is an amenable number.

118161593 is a deficient number, since it is larger than the sum of its proper divisors (10741975).

118161593 is a wasteful number, since it uses less digits than its factorization.

118161593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10741974.

The product of its digits is 6480, while the sum is 35.

The square root of 118161593 is about 10870.2158672218. The cubic root of 118161593 is about 490.7106071723.

The spelling of 118161593 in words is "one hundred eighteen million, one hundred sixty-one thousand, five hundred ninety-three".