1227827136 has 28 divisors (see below), whose sum is σ = 3248626472. Its totient is φ = 409275648.

The previous prime is 1227827131. The next prime is 1227827221. The reversal of 1227827136 is 6317287221.

It is a junction number, because it is equal to n+sod(n) for n = 1227827094 and 1227827103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1227827131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3197275 + ... + 3197658.

It is an arithmetic number, because the mean of its divisors is an integer number (116022374).

Almost surely, 2^1227827136 is an apocalyptic number.

1227827136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1227827136 is an abundant number, since it is smaller than the sum of its proper divisors (2020799336).

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

1227827136 is an equidigital number, since it uses as much as digits as its factorization.

1227827136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6394948 (or 6394938 counting only the distinct ones).

The product of its digits is 56448, while the sum is 39.

The square root of 1227827136 is about 35040.3643816670. The cubic root of 1227827136 is about 1070.8099774376.

The spelling of 1227827136 in words is "one billion, two hundred twenty-seven million, eight hundred twenty-seven thousand, one hundred thirty-six".