1385273 has 2 divisors, whose sum is σ = 1385274. Its totient is φ = 1385272.

The previous prime is 1385213. The next prime is 1385287. The reversal of 1385273 is 3725831.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1227664 + 157609 = 1108^2 + 397^2 .

It is a cyclic number.

It is not a de Polignac number, because 1385273 - 2⁸ = 1385017 is a prime.

It is not a weakly prime, because it can be changed into another prime (1385203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 692636 + 692637.

It is an arithmetic number, because the mean of its divisors is an integer number (692637).

2^1385273 is an apocalyptic number.

It is an amenable number.

1385273 is a deficient number, since it is larger than the sum of its proper divisors (1).

1385273 is an equidigital number, since it uses as much as digits as its factorization.

1385273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5040, while the sum is 29.

The square root of 1385273 is about 1176.9762104648. The cubic root of 1385273 is about 111.4752503937.

The spelling of 1385273 in words is "one million, three hundred eighty-five thousand, two hundred seventy-three".