1001061685 has 8 divisors (see below), whose sum is σ = 1293679800. Its totient is φ = 739245504.

The previous prime is 1001061679. The next prime is 1001061713. The reversal of 1001061685 is 5861601001.

It can be written as a sum of positive squares in 4 ways, for example, as 15038884 + 986022801 = 3878^2 + 31401^2 .

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 1001061685 - 2⁷ = 1001061557 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7700410 + ... + 7700539.

It is an arithmetic number, because the mean of its divisors is an integer number (161709975).

Almost surely, 2^1001061685 is an apocalyptic number.

It is an amenable number.

1001061685 is a deficient number, since it is larger than the sum of its proper divisors (292618115).

1001061685 is a wasteful number, since it uses less digits than its factorization.

1001061685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15400967.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 1001061685 is about 31639.5588622850. The cubic root of 1001061685 is about 1000.3537698321.

Adding to 1001061685 its reverse (5861601001), we get a palindrome (6862662686).

The spelling of 1001061685 in words is "one billion, one million, sixty-one thousand, six hundred eighty-five".