1359729 has 24 divisors (see below), whose sum is σ = 2276352. Its totient is φ = 766080.

The previous prime is 1359727. The next prime is 1359731. The reversal of 1359729 is 9279531.

It is an interprime number because it is at equal distance from previous prime (1359727) and next prime (1359731).

It is not a de Polignac number, because 1359729 - 2¹ = 1359727 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1359693 and 1359702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1359727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7024 + ... + 7214.

It is an arithmetic number, because the mean of its divisors is an integer number (94848).

2^1359729 is an apocalyptic number.

It is an amenable number.

1359729 is a deficient number, since it is larger than the sum of its proper divisors (916623).

1359729 is a wasteful number, since it uses less digits than its factorization.

1359729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317 (or 314 counting only the distinct ones).

The product of its digits is 17010, while the sum is 36.

The square root of 1359729 is about 1166.0741828889. The cubic root of 1359729 is about 110.7858055904.

It can be divided in two parts, 135972 and 9, that added together give a triangular number (135981 = T₅₂₁).

The spelling of 1359729 in words is "one million, three hundred fifty-nine thousand, seven hundred twenty-nine".