1301729 has 8 divisors (see below), whose sum is σ = 1529472. Its totient is φ = 1092240.

The previous prime is 1301719. The next prime is 1301761. The reversal of 1301729 is 9271031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1301729 - 2¹² = 1297633 is a prime.

It is a super-3 number, since 3×1301729³ = 6617333081965930467, which contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1301719) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4409 + ... + 4694.

It is an arithmetic number, because the mean of its divisors is an integer number (191184).

2^1301729 is an apocalyptic number.

It is an amenable number.

1301729 is a deficient number, since it is larger than the sum of its proper divisors (227743).

1301729 is a wasteful number, since it uses less digits than its factorization.

1301729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9127.

The product of its (nonzero) digits is 378, while the sum is 23.

The square root of 1301729 is about 1140.9333898173. The cubic root of 1301729 is about 109.1876519557.

The spelling of 1301729 in words is "one million, three hundred one thousand, seven hundred twenty-nine".