1146865 has 4 divisors (see below), whose sum is σ = 1376244. Its totient is φ = 917488.

The previous prime is 1146857. The next prime is 1146869. The reversal of 1146865 is 5686411.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 495616 + 651249 = 704^2 + 807^2 .

It is a cyclic number.

It is not a de Polignac number, because 1146865 - 2³ = 1146857 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1146869) 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, 114682 + ... + 114691.

It is an arithmetic number, because the mean of its divisors is an integer number (344061).

2^1146865 is an apocalyptic number.

It is an amenable number.

1146865 is a deficient number, since it is larger than the sum of its proper divisors (229379).

1146865 is an equidigital number, since it uses as much as digits as its factorization.

1146865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229378.

The product of its digits is 5760, while the sum is 31.

The square root of 1146865 is about 1070.9178306481. The cubic root of 1146865 is about 104.6736655811.

It can be divided in two parts, 11 and 46865, that multiplied together give a palindrome (515515).

The spelling of 1146865 in words is "one million, one hundred forty-six thousand, eight hundred sixty-five".