1053729 has 10 divisors (see below), whose sum is σ = 1574210. Its totient is φ = 702432.

The previous prime is 1053727. The next prime is 1053737. The reversal of 1053729 is 9273501.

It can be written as a sum of positive squares in only one way, i.e., 762129 + 291600 = 873^2 + 540^2 .

It is not a de Polignac number, because 1053729 - 2¹ = 1053727 is a prime.

It is a super-2 number, since 2×1053729² = 2220689610882, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1053727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 6424 + ... + 6585.

It is an arithmetic number, because the mean of its divisors is an integer number (157421).

2^1053729 is an apocalyptic number.

It is an amenable number.

1053729 is a deficient number, since it is larger than the sum of its proper divisors (520481).

1053729 is an equidigital number, since it uses as much as digits as its factorization.

1053729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13021 (or 13012 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 1053729 is about 1026.5130296299. The cubic root of 1053729 is about 101.7598154923.

The spelling of 1053729 in words is "one million, fifty-three thousand, seven hundred twenty-nine".