1013281 has 4 divisors (see below), whose sum is σ = 1016064. Its totient is φ = 1010500.

The previous prime is 1013279. The next prime is 1013291. The reversal of 1013281 is 1823101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1013281 - 2¹ = 1013279 is a prime.

It is a super-2 number, since 2×1013281² = 2053476769922, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is a zygodrome in base 5.

It is not an unprimeable number, because it can be changed into a prime (1013291) 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 in 3 ways as a sum of consecutive naturals, for example, 745 + ... + 1606.

It is an arithmetic number, because the mean of its divisors is an integer number (254016).

2^1013281 is an apocalyptic number.

It is an amenable number.

1013281 is a deficient number, since it is larger than the sum of its proper divisors (2783).

1013281 is an equidigital number, since it uses as much as digits as its factorization.

1013281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2782.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 1013281 is about 1006.6185970863. The cubic root of 1013281 is about 100.4407545006.

Adding to 1013281 its reverse (1823101), we get a palindrome (2836382).

The spelling of 1013281 in words is "one million, thirteen thousand, two hundred eighty-one".