1227144231 has 24 divisors (see below), whose sum is σ = 1864212480. Its totient is φ = 776348496.

The previous prime is 1227144229. The next prime is 1227144253. The reversal of 1227144231 is 1324417221.

1227144231 is a `hidden beast` number, since 1 + 227 + 14 + 423 + 1 = 666.

It is not a de Polignac number, because 1227144231 - 2¹ = 1227144229 is a prime.

It is a super-2 number, since 2×1227144231² = 3011765927353162722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1227144195 and 1227144204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1227144221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2950 + ... + 49628.

It is an arithmetic number, because the mean of its divisors is an integer number (77675520).

Almost surely, 2^1227144231 is an apocalyptic number.

1227144231 is a deficient number, since it is larger than the sum of its proper divisors (637068249).

1227144231 is a wasteful number, since it uses less digits than its factorization.

1227144231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46835 (or 46832 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 1227144231 is about 35030.6184786966. The cubic root of 1227144231 is about 1070.6114160708.

The spelling of 1227144231 in words is "one billion, two hundred twenty-seven million, one hundred forty-four thousand, two hundred thirty-one".