1358729 has 2 divisors, whose sum is σ = 1358730. Its totient is φ = 1358728.

The previous prime is 1358717. The next prime is 1358741. The reversal of 1358729 is 9278531.

It is a balanced prime because it is at equal distance from previous prime (1358717) and next prime (1358741).

It can be written as a sum of positive squares in only one way, i.e., 1254400 + 104329 = 1120^2 + 323^2 .

It is an emirp because it is prime and its reverse (9278531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1358729 - 2⁴ = 1358713 is a prime.

It is a super-2 number, since 2×1358729² = 3692288990882, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1358779) 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 as a sum of consecutive naturals, namely, 679364 + 679365.

It is an arithmetic number, because the mean of its divisors is an integer number (679365).

2^1358729 is an apocalyptic number.

It is an amenable number.

1358729 is a deficient number, since it is larger than the sum of its proper divisors (1).

1358729 is an equidigital number, since it uses as much as digits as its factorization.

1358729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 35.

The square root of 1358729 is about 1165.6453148364. The cubic root of 1358729 is about 110.7586401343.

The spelling of 1358729 in words is "one million, three hundred fifty-eight thousand, seven hundred twenty-nine".