118300721 has 8 divisors (see below), whose sum is σ = 147491904. Its totient is φ = 92182320.

The previous prime is 118300711. The next prime is 118300727. The reversal of 118300721 is 127003811.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-118300721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (118300727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 768110 + ... + 768263.

It is an arithmetic number, because the mean of its divisors is an integer number (18436488).

Almost surely, 2^118300721 is an apocalyptic number.

118300721 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

118300721 is a deficient number, since it is larger than the sum of its proper divisors (29191183).

118300721 is a wasteful number, since it uses less digits than its factorization.

118300721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1536391.

The product of its (nonzero) digits is 336, while the sum is 23.

The square root of 118300721 is about 10876.6134895012. The cubic root of 118300721 is about 490.9031254741.

The spelling of 118300721 in words is "one hundred eighteen million, three hundred thousand, seven hundred twenty-one".