118138345 has 8 divisors (see below), whose sum is σ = 152671176. Its totient is φ = 87240576.

The previous prime is 118138297. The next prime is 118138357. The reversal of 118138345 is 543831811.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 46656 + 118091689 = 216^2 + 10867^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 118138345 - 2¹¹ = 118136297 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 118138345.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 908692 + ... + 908821.

It is an arithmetic number, because the mean of its divisors is an integer number (19083897).

Almost surely, 2^118138345 is an apocalyptic number.

It is an amenable number.

118138345 is a deficient number, since it is larger than the sum of its proper divisors (34532831).

118138345 is a wasteful number, since it uses less digits than its factorization.

118138345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1817531.

The product of its digits is 11520, while the sum is 34.

The square root of 118138345 is about 10869.1464706296. The cubic root of 118138345 is about 490.6784230304.

The spelling of 118138345 in words is "one hundred eighteen million, one hundred thirty-eight thousand, three hundred forty-five".