1227165 has 16 divisors (see below), whose sum is σ = 2049408. Its totient is φ = 625856.

The previous prime is 1227157. The next prime is 1227167. The reversal of 1227165 is 5617221.

It is a cyclic number.

It is not a de Polignac number, because 1227165 - 2³ = 1227157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1227167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1434 + ... + 2123.

It is an arithmetic number, because the mean of its divisors is an integer number (128088).

2^1227165 is an apocalyptic number.

1227165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1227165 is a deficient number, since it is larger than the sum of its proper divisors (822243).

1227165 is a wasteful number, since it uses less digits than its factorization.

1227165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3588.

The product of its digits is 840, while the sum is 24.

The square root of 1227165 is about 1107.7747966080. The cubic root of 1227165 is about 107.0617455948.

The spelling of 1227165 in words is "one million, two hundred twenty-seven thousand, one hundred sixty-five".