1227536 has 20 divisors (see below), whose sum is σ = 2518812. Its totient is φ = 577536.

The previous prime is 1227497. The next prime is 1227539. The reversal of 1227536 is 6357221.

It can be written as a sum of positive squares in 2 ways, for example, as 336400 + 891136 = 580^2 + 944^2 .

It is not an unprimeable number, because it can be changed into a prime (1227539) 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, 1985 + ... + 2528.

2^1227536 is an apocalyptic number.

1227536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1227536 is an abundant number, since it is smaller than the sum of its proper divisors (1291276).

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

1227536 is a wasteful number, since it uses less digits than its factorization.

1227536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4538 (or 4532 counting only the distinct ones).

The product of its digits is 2520, while the sum is 26.

The square root of 1227536 is about 1107.9422367615. The cubic root of 1227536 is about 107.0725335779.

The spelling of 1227536 in words is "one million, two hundred twenty-seven thousand, five hundred thirty-six".