118213241 has 4 divisors (see below), whose sum is σ = 118240512. Its totient is φ = 118185972.

The previous prime is 118213213. The next prime is 118213247. The reversal of 118213241 is 142312811.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 142312811 = 433 ⋅328667.

It is a cyclic number.

It is not a de Polignac number, because 118213241 - 2¹⁰ = 118212217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118213247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5525 + ... + 16338.

It is an arithmetic number, because the mean of its divisors is an integer number (29560128).

Almost surely, 2^118213241 is an apocalyptic number.

It is an amenable number.

118213241 is a deficient number, since it is larger than the sum of its proper divisors (27271).

118213241 is an equidigital number, since it uses as much as digits as its factorization.

118213241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27270.

The product of its digits is 384, while the sum is 23.

The square root of 118213241 is about 10872.5912734729. The cubic root of 118213241 is about 490.7820926950.

The spelling of 118213241 in words is "one hundred eighteen million, two hundred thirteen thousand, two hundred forty-one".