118421522 has 4 divisors (see below), whose sum is σ = 177632286. Its totient is φ = 59210760.

The previous prime is 118421521. The next prime is 118421533. The reversal of 118421522 is 225124811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 225124811 = 14771 ⋅15241.

It can be written as a sum of positive squares in only one way, i.e., 100180081 + 18241441 = 10009^2 + 4271^2 .

It is a junction number, because it is equal to n+sod(n) for n = 118421491 and 118421500.

It is not an unprimeable number, because it can be changed into a prime (118421521) 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 as a sum of consecutive naturals, namely, 29605379 + ... + 29605382.

Almost surely, 2^118421522 is an apocalyptic number.

118421522 is a deficient number, since it is larger than the sum of its proper divisors (59210764).

118421522 is an equidigital number, since it uses as much as digits as its factorization.

118421522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59210763.

The product of its digits is 1280, while the sum is 26.

The square root of 118421522 is about 10882.1653176195. The cubic root of 118421522 is about 491.0701614100.

The spelling of 118421522 in words is "one hundred eighteen million, four hundred twenty-one thousand, five hundred twenty-two".