118453439 has 4 divisors (see below), whose sum is σ = 127565256. Its totient is φ = 109341624.

The previous prime is 118453421. The next prime is 118453451. The reversal of 118453439 is 934354811.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 118453439 - 2²⁰ = 117404863 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118453499) 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, 4555889 + ... + 4555914.

It is an arithmetic number, because the mean of its divisors is an integer number (31891314).

Almost surely, 2^118453439 is an apocalyptic number.

118453439 is a deficient number, since it is larger than the sum of its proper divisors (9111817).

118453439 is an equidigital number, since it uses as much as digits as its factorization.

118453439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9111816.

The product of its digits is 51840, while the sum is 38.

The square root of 118453439 is about 10883.6317008616. The cubic root of 118453439 is about 491.1142752337.

The spelling of 118453439 in words is "one hundred eighteen million, four hundred fifty-three thousand, four hundred thirty-nine".