1001601306 has 12 divisors (see below), whose sum is σ = 2170136202. Its totient is φ = 333867096.

The previous prime is 1001601281. The next prime is 1001601343. The reversal of 1001601306 is 6031061001.

It can be written as a sum of positive squares in only one way, i.e., 560979225 + 440622081 = 23685^2 + 20991^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 55644517 = 1001601306 / (1 + 0 + 0 + 1 + 6 + 0 + 1 + 3 + 0 + 6).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27822241 + ... + 27822276.

Almost surely, 2^1001601306 is an apocalyptic number.

1001601306 is an abundant number, since it is smaller than the sum of its proper divisors (1168534896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1001601306 is a wasteful number, since it uses less digits than its factorization.

1001601306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55644525 (or 55644522 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 1001601306 is about 31648.0853449304. The cubic root of 1001601306 is about 1000.5334840109.

Adding to 1001601306 its reverse (6031061001), we get a palindrome (7032662307).

The spelling of 1001601306 in words is "one billion, one million, six hundred one thousand, three hundred six".