1013871 has 4 divisors (see below), whose sum is σ = 1351832. Its totient is φ = 675912.

The previous prime is 1013851. The next prime is 1013879. The reversal of 1013871 is 1783101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1783101 = 3 ⋅594367.

It is not a de Polignac number, because 1013871 - 2⁵ = 1013839 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1013879) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168976 + ... + 168981.

It is an arithmetic number, because the mean of its divisors is an integer number (337958).

2^1013871 is an apocalyptic number.

1013871 is a deficient number, since it is larger than the sum of its proper divisors (337961).

1013871 is an equidigital number, since it uses as much as digits as its factorization.

1013871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337960.

The product of its (nonzero) digits is 168, while the sum is 21.

The square root of 1013871 is about 1006.9116147905. The cubic root of 1013871 is about 100.4602451609.

Adding to 1013871 its reverse (1783101), we get a palindrome (2796972).

The spelling of 1013871 in words is "one million, thirteen thousand, eight hundred seventy-one".