1385117 has 2 divisors, whose sum is σ = 1385118. Its totient is φ = 1385116.

The previous prime is 1385113. The next prime is 1385147. The reversal of 1385117 is 7115831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1229881 + 155236 = 1109^2 + 394^2 .

It is a cyclic number.

It is not a de Polignac number, because 1385117 - 2² = 1385113 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1385113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 692558 + 692559.

It is an arithmetic number, because the mean of its divisors is an integer number (692559).

2^1385117 is an apocalyptic number.

It is an amenable number.

1385117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1385117 is an equidigital number, since it uses as much as digits as its factorization.

1385117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 840, while the sum is 26.

The square root of 1385117 is about 1176.9099370810. The cubic root of 1385117 is about 111.4710657090.

The spelling of 1385117 in words is "one million, three hundred eighty-five thousand, one hundred seventeen".