118575821 has 8 divisors (see below), whose sum is σ = 145939584. Its totient is φ = 93818160.

The previous prime is 118575803. The next prime is 118575823. The reversal of 118575821 is 128575811.

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 118575821 - 2¹⁴ = 118559437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118575823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 651425 + ... + 651606.

It is an arithmetic number, because the mean of its divisors is an integer number (18242448).

Almost surely, 2^118575821 is an apocalyptic number.

It is an amenable number.

118575821 is a deficient number, since it is larger than the sum of its proper divisors (27363763).

118575821 is a wasteful number, since it uses less digits than its factorization.

118575821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1303051.

The product of its digits is 22400, while the sum is 38.

The square root of 118575821 is about 10889.2525455148. The cubic root of 118575821 is about 491.2833511188.

The spelling of 118575821 in words is "one hundred eighteen million, five hundred seventy-five thousand, eight hundred twenty-one".