118353493 has 4 divisors (see below), whose sum is σ = 118441440. Its totient is φ = 118265548.

The previous prime is 118353479. The next prime is 118353497. The reversal of 118353493 is 394353811.

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.

It is a cyclic number.

It is not a de Polignac number, because 118353493 - 2⁵ = 118353461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118353497) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41923 + ... + 44656.

It is an arithmetic number, because the mean of its divisors is an integer number (29610360).

Almost surely, 2^118353493 is an apocalyptic number.

It is an amenable number.

118353493 is a deficient number, since it is larger than the sum of its proper divisors (87947).

118353493 is an equidigital number, since it uses as much as digits as its factorization.

118353493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87946.

The product of its digits is 38880, while the sum is 37.

The square root of 118353493 is about 10879.0391579404. The cubic root of 118353493 is about 490.9761092182.

The spelling of 118353493 in words is "one hundred eighteen million, three hundred fifty-three thousand, four hundred ninety-three".