1353729 has 16 divisors (see below), whose sum is σ = 1968512. Its totient is φ = 822528.

The previous prime is 1353713. The next prime is 1353733. The reversal of 1353729 is 9273531.

It is not a de Polignac number, because 1353729 - 2⁴ = 1353713 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1353696 and 1353705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1353029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3849 + ... + 4185.

It is an arithmetic number, because the mean of its divisors is an integer number (123032).

It is a Proth number, since it is equal to 661 ⋅ 2¹¹ + 1 and 661 < 2¹¹.

2^1353729 is an apocalyptic number.

It is an amenable number.

1353729 is a deficient number, since it is larger than the sum of its proper divisors (614783).

1353729 is a wasteful number, since it uses less digits than its factorization.

1353729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456.

The product of its digits is 5670, while the sum is 30.

The square root of 1353729 is about 1163.4986033511. The cubic root of 1353729 is about 110.6226125438.

The spelling of 1353729 in words is "one million, three hundred fifty-three thousand, seven hundred twenty-nine".