1301285729 has 8 divisors (see below), whose sum is σ = 1344026112. Its totient is φ = 1258593120.

The previous prime is 1301285719. The next prime is 1301285761. The reversal of 1301285729 is 9275821031.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1301285729 is a prime.

It is a super-2 number, since 2×1301285729² = 3386689096998122882, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1301285692 and 1301285701.

It is not an unprimeable number, because it can be changed into a prime (1301285719) 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, 48332 + ... + 70274.

It is an arithmetic number, because the mean of its divisors is an integer number (168003264).

Almost surely, 2^1301285729 is an apocalyptic number.

It is an amenable number.

1301285729 is a deficient number, since it is larger than the sum of its proper divisors (42740383).

1301285729 is a wasteful number, since it uses less digits than its factorization.

1301285729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23887.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 1301285729 is about 36073.3382015028. The cubic root of 1301285729 is about 1091.7525684775.

The spelling of 1301285729 in words is "one billion, three hundred one million, two hundred eighty-five thousand, seven hundred twenty-nine".