1385013 has 16 divisors (see below), whose sum is σ = 2134656. Its totient is φ = 782400.

The previous prime is 1385009. The next prime is 1385017. The reversal of 1385013 is 3105831.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1385009) and next prime (1385017).

It is not a de Polignac number, because 1385013 - 2² = 1385009 is a prime.

It is a super-2 number, since 2×1385013² = 3836522020338, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

1385013 is a lucky number.

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1385017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1795 + ... + 2447.

It is an arithmetic number, because the mean of its divisors is an integer number (133416).

2^1385013 is an apocalyptic number.

It is an amenable number.

1385013 is a deficient number, since it is larger than the sum of its proper divisors (749643).

1385013 is a wasteful number, since it uses less digits than its factorization.

1385013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 1385013 is about 1176.8657527518. The cubic root of 1385013 is about 111.4682757447.

It can be divided in two parts, 138 and 5013, that added together give a triangular number (5151 = T₁₀₁).

The spelling of 1385013 in words is "one million, three hundred eighty-five thousand, thirteen".