1227150900 has 108 divisors (see below), whose sum is σ = 3882688992. Its totient is φ = 324156480.

The previous prime is 1227150893. The next prime is 1227150913. The reversal of 1227150900 is 90517221.

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 35 ways as a sum of consecutive naturals, for example, 89929 + ... + 102671.

It is an arithmetic number, because the mean of its divisors is an integer number (35950824).

Almost surely, 2^1227150900 is an apocalyptic number.

1227150900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1227150900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1941344496).

1227150900 is an abundant number, since it is smaller than the sum of its proper divisors (2655538092).

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

1227150900 is a wasteful number, since it uses less digits than its factorization.

1227150900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12870 (or 12860 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 1227150900 is about 35030.7136667239. The cubic root of 1227150900 is about 1070.6133555045.

The spelling of 1227150900 in words is "one billion, two hundred twenty-seven million, one hundred fifty thousand, nine hundred".