1249065 has 24 divisors (see below), whose sum is σ = 2221128. Its totient is φ = 648960.

The previous prime is 1249063. The next prime is 1249091. The reversal of 1249065 is 5609421.

It can be written as a sum of positive squares in 4 ways, for example, as 184041 + 1065024 = 429^2 + 1032^2 .

It is not a de Polignac number, because 1249065 - 2¹ = 1249063 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1249063) 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, 1507 + ... + 2183.

It is an arithmetic number, because the mean of its divisors is an integer number (92547).

2^1249065 is an apocalyptic number.

1249065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1249065 is a deficient number, since it is larger than the sum of its proper divisors (972063).

1249065 is a wasteful number, since it uses less digits than its factorization.

1249065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729 (or 726 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 1249065 is about 1117.6157658158. The cubic root of 1249065 is about 107.6948691829.

The spelling of 1249065 in words is "one million, two hundred forty-nine thousand, sixty-five".