118243875 has 64 divisors (see below), whose sum is σ = 207567360. Its totient is φ = 59696000.

The previous prime is 118243871. The next prime is 118243883. The reversal of 118243875 is 578342811.

It is a Cunningham number, because it is equal to 10874²-1.

It is not a de Polignac number, because 118243875 - 2² = 118243871 is a prime.

It is a super-2 number, since 2×118243875² = 27963227950031250, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (118243871) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 902560 + ... + 902690.

It is an arithmetic number, because the mean of its divisors is an integer number (3243240).

Almost surely, 2^118243875 is an apocalyptic number.

118243875 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

118243875 is a deficient number, since it is larger than the sum of its proper divisors (89323485).

118243875 is a wasteful number, since it uses less digits than its factorization.

118243875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261 (or 251 counting only the distinct ones).

The product of its digits is 53760, while the sum is 39.

The square root of 118243875 is about 10873.9999540188. Note that the first 4 decimals coincide. The cubic root of 118243875 is about 490.8244830961.

The spelling of 118243875 in words is "one hundred eighteen million, two hundred forty-three thousand, eight hundred seventy-five".