146649222 has 24 divisors (see below), whose sum is σ = 322218000. Its totient is φ = 48194160.

The previous prime is 146649199. The next prime is 146649233. The reversal of 146649222 is 222946641.

146649222 is a `hidden beast` number, since 1 + 4 + 6 + 649 + 2 + 2 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 56097 + ... + 58652.

It is an arithmetic number, because the mean of its divisors is an integer number (13425750).

Almost surely, 2^146649222 is an apocalyptic number.

146649222 is an abundant number, since it is smaller than the sum of its proper divisors (175568778).

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

146649222 is a wasteful number, since it uses less digits than its factorization.

146649222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114828 (or 114825 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 146649222 is about 12109.8811720016. The cubic root of 146649222 is about 527.3430836844.

The spelling of 146649222 in words is "one hundred forty-six million, six hundred forty-nine thousand, two hundred twenty-two".