118222146 has 32 divisors (see below), whose sum is σ = 300247680. Its totient is φ = 33777648.

The previous prime is 118222073. The next prime is 118222187. The reversal of 118222146 is 641222811.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156001 + ... + 156756.

It is an arithmetic number, because the mean of its divisors is an integer number (9382740).

Almost surely, 2^118222146 is an apocalyptic number.

118222146 is an abundant number, since it is smaller than the sum of its proper divisors (182025534).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

118222146 is a wasteful number, since it uses less digits than its factorization.

118222146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312775 (or 312769 counting only the distinct ones).

The product of its digits is 1536, while the sum is 27.

The square root of 118222146 is about 10873.0007817529. Note that the first 3 decimals coincide. The cubic root of 118222146 is about 490.7944159192.

Adding to 118222146 its reverse (641222811), we get a palindrome (759444957).

The spelling of 118222146 in words is "one hundred eighteen million, two hundred twenty-two thousand, one hundred forty-six".