1385279 has 12 divisors (see below), whose sum is σ = 1707264. Its totient is φ = 1116864.

The previous prime is 1385273. The next prime is 1385287. The reversal of 1385279 is 9725831.

It is not a de Polignac number, because 1385279 - 2⁸ = 1385023 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 (1385273) by changing a digit.

It is an upside-down number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2 + ... + 1664.

It is an arithmetic number, because the mean of its divisors is an integer number (142272).

2^1385279 is an apocalyptic number.

1385279 is a deficient number, since it is larger than the sum of its proper divisors (321985).

1385279 is a wasteful number, since it uses less digits than its factorization.

1385279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1694 (or 1687 counting only the distinct ones).

The product of its digits is 15120, while the sum is 35.

The square root of 1385279 is about 1176.9787593665. The cubic root of 1385279 is about 111.4754113368.

It can be divided in two parts, 13852 and 79, that added together give a palindrome (13931).

The spelling of 1385279 in words is "one million, three hundred eighty-five thousand, two hundred seventy-nine".