118221874 has 4 divisors (see below), whose sum is σ = 177332814. Its totient is φ = 59110936.

The previous prime is 118221871. The next prime is 118221877. The reversal of 118221874 is 478122811.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (118221871) and next prime (118221877).

It can be written as a sum of positive squares in only one way, i.e., 63091249 + 55130625 = 7943^2 + 7425^2 .

It is a super-2 number, since 2×118221874² = 27952822984143752, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (118221871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29555467 + ... + 29555470.

Almost surely, 2^118221874 is an apocalyptic number.

118221874 is a deficient number, since it is larger than the sum of its proper divisors (59110940).

118221874 is an equidigital number, since it uses as much as digits as its factorization.

118221874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59110939.

The product of its digits is 7168, while the sum is 34.

The square root of 118221874 is about 10872.9882736992. The cubic root of 118221874 is about 490.7940395199.

The spelling of 118221874 in words is "one hundred eighteen million, two hundred twenty-one thousand, eight hundred seventy-four".