164225900 has 18 divisors (see below), whose sum is σ = 356370420. Its totient is φ = 65690320.

The previous prime is 164225891. The next prime is 164225917. The reversal of 164225900 is 9522461.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 821030 + ... + 821229.

Almost surely, 2^164225900 is an apocalyptic number.

164225900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164225900 is an abundant number, since it is smaller than the sum of its proper divisors (192144520).

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

164225900 is a wasteful number, since it uses less digits than its factorization.

164225900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1642273 (or 1642266 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 164225900 is about 12815.0653529352. The cubic root of 164225900 is about 547.6215752756.

It can be divided in two parts, 16422 and 5900, that added together give a palindrome (22322).

The spelling of 164225900 in words is "one hundred sixty-four million, two hundred twenty-five thousand, nine hundred".