118641841 has 4 divisors (see below), whose sum is σ = 118861684. Its totient is φ = 118422000.

The previous prime is 118641839. The next prime is 118641847. The reversal of 118641841 is 148146811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 148146811 = 631 ⋅234781.

It can be written as a sum of positive squares in 2 ways, for example, as 18241441 + 100400400 = 4271^2 + 10020^2 .

It is a cyclic number.

It is not a de Polignac number, because 118641841 - 2¹ = 118641839 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 118641797 and 118641806.

It is not an unprimeable number, because it can be changed into a prime (118641847) 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, 109110 + ... + 110191.

It is an arithmetic number, because the mean of its divisors is an integer number (29715421).

Almost surely, 2^118641841 is an apocalyptic number.

It is an amenable number.

118641841 is a deficient number, since it is larger than the sum of its proper divisors (219843).

118641841 is an equidigital number, since it uses as much as digits as its factorization.

118641841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219842.

The product of its digits is 6144, while the sum is 34.

The square root of 118641841 is about 10892.2835530480. The cubic root of 118641841 is about 491.3745122253.

The spelling of 118641841 in words is "one hundred eighteen million, six hundred forty-one thousand, eight hundred forty-one".