118247845 has 8 divisors (see below), whose sum is σ = 141977880. Its totient is φ = 94544640.

The previous prime is 118247839. The next prime is 118247863. The reversal of 118247845 is 548742811.

It can be written as a sum of positive squares in 4 ways, for example, as 9400356 + 108847489 = 3066^2 + 10433^2 .

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

It is not a de Polignac number, because 118247845 - 2³ = 118247837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 118247798 and 118247807.

It is a congruent number.

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, 4785 + ... + 16105.

It is an arithmetic number, because the mean of its divisors is an integer number (17747235).

Almost surely, 2^118247845 is an apocalyptic number.

It is an amenable number.

118247845 is a deficient number, since it is larger than the sum of its proper divisors (23730035).

118247845 is a wasteful number, since it uses less digits than its factorization.

118247845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13415.

The product of its digits is 71680, while the sum is 40.

The square root of 118247845 is about 10874.1824980088. The cubic root of 118247845 is about 490.8299761259.

The spelling of 118247845 in words is "one hundred eighteen million, two hundred forty-seven thousand, eight hundred forty-five".