1227123125 has 10 divisors (see below), whose sum is σ = 1533413838. Its totient is φ = 981698000.

The previous prime is 1227123119. The next prime is 1227123133. The reversal of 1227123125 is 5213217221.

It can be written as a sum of positive squares in 5 ways, for example, as 581099236 + 646023889 = 24106^2 + 25417^2 .

It is not a de Polignac number, because 1227123125 - 2⁶ = 1227123061 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1227123094 and 1227123103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 981074 + ... + 982323.

Almost surely, 2^1227123125 is an apocalyptic number.

It is an amenable number.

1227123125 is a deficient number, since it is larger than the sum of its proper divisors (306290713).

1227123125 is an frugal number, since it uses more digits than its factorization.

1227123125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1963417 (or 1963402 counting only the distinct ones).

The product of its digits is 1680, while the sum is 26.

The square root of 1227123125 is about 35030.3172266538. The cubic root of 1227123125 is about 1070.6052781196.

The spelling of 1227123125 in words is "one billion, two hundred twenty-seven million, one hundred twenty-three thousand, one hundred twenty-five".