1385715 has 8 divisors (see below), whose sum is σ = 2217168. Its totient is φ = 739040.

The previous prime is 1385693. The next prime is 1385743. The reversal of 1385715 is 5175831.

1385715 = 153² + 154² + ... + 197².

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1385715 - 2⁸ = 1385459 is a prime.

It is a super-2 number, since 2×1385715² = 3840412122450, which contains 22 as substring.

1385715 is a lucky number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 46176 + ... + 46205.

It is an arithmetic number, because the mean of its divisors is an integer number (277146).

2^1385715 is an apocalyptic number.

1385715 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1385715 is a deficient number, since it is larger than the sum of its proper divisors (831453).

1385715 is an equidigital number, since it uses as much as digits as its factorization.

1385715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92389.

The product of its digits is 4200, while the sum is 30.

The square root of 1385715 is about 1177.1639647900. The cubic root of 1385715 is about 111.4871052943.

The spelling of 1385715 in words is "one million, three hundred eighty-five thousand, seven hundred fifteen".