1385023 has 2 divisors, whose sum is σ = 1385024. Its totient is φ = 1385022.

The previous prime is 1385017. The next prime is 1385039. The reversal of 1385023 is 3205831.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1385023 - 2¹⁷ = 1253951 is a prime.

1385023 is a lucky number.

It is a nialpdrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 1384985 and 1385003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1385003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 692511 + 692512.

It is an arithmetic number, because the mean of its divisors is an integer number (692512).

2^1385023 is an apocalyptic number.

1385023 is a deficient number, since it is larger than the sum of its proper divisors (1).

1385023 is an equidigital number, since it uses as much as digits as its factorization.

1385023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1385023 is about 1176.8700013171. The cubic root of 1385023 is about 111.4685440166.

The spelling of 1385023 in words is "one million, three hundred eighty-five thousand, twenty-three".