1227105 has 48 divisors (see below), whose sum is σ = 2418624. Its totient is φ = 570240.

The previous prime is 1227103. The next prime is 1227131. The reversal of 1227105 is 5017221.

It is not a de Polignac number, because 1227105 - 2¹ = 1227103 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1227101) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18282 + ... + 18348.

It is an arithmetic number, because the mean of its divisors is an integer number (50388).

2^1227105 is an apocalyptic number.

1227105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1227105 is a deficient number, since it is larger than the sum of its proper divisors (1191519).

1227105 is a wasteful number, since it uses less digits than its factorization.

1227105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126 (or 123 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The square root of 1227105 is about 1107.7477149604. The cubic root of 1227105 is about 107.0600007033.

It can be divided in two parts, 122 and 7105, that added together give a palindrome (7227).

The spelling of 1227105 in words is "one million, two hundred twenty-seven thousand, one hundred five".