1385965 has 12 divisors (see below), whose sum is σ = 1935036. Its totient is φ = 950208.

The previous prime is 1385963. The next prime is 1385977. The reversal of 1385965 is 5695831.

It can be written as a sum of positive squares in 2 ways, for example, as 298116 + 1087849 = 546^2 + 1043^2 .

It is not a de Polignac number, because 1385965 - 2¹ = 1385963 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1385963) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2584 + ... + 3073.

It is an arithmetic number, because the mean of its divisors is an integer number (161253).

2^1385965 is an apocalyptic number.

It is an amenable number.

1385965 is a deficient number, since it is larger than the sum of its proper divisors (549071).

1385965 is an equidigital number, since it uses as much as digits as its factorization.

1385965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5676 (or 5669 counting only the distinct ones).

The product of its digits is 32400, while the sum is 37.

The square root of 1385965 is about 1177.2701474173. The cubic root of 1385965 is about 111.4938094387.

It can be divided in two parts, 138596 and 5, that added together give a triangular number (138601 = T₅₂₆).

The spelling of 1385965 in words is "one million, three hundred eighty-five thousand, nine hundred sixty-five".