1009665361 has 8 divisors (see below), whose sum is σ = 1039034304. Its totient is φ = 980406000.

The previous prime is 1009665359. The next prime is 1009665379. The reversal of 1009665361 is 1635669001.

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 1009665361 - 2¹ = 1009665359 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1009665361.

It is not an unprimeable number, because it can be changed into a prime (1009662361) 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, 8515 + ... + 45736.

It is an arithmetic number, because the mean of its divisors is an integer number (129879288).

Almost surely, 2^1009665361 is an apocalyptic number.

It is an amenable number.

1009665361 is a deficient number, since it is larger than the sum of its proper divisors (29368943).

1009665361 is an equidigital number, since it uses as much as digits as its factorization.

1009665361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54791.

The product of its (nonzero) digits is 29160, while the sum is 37.

The square root of 1009665361 is about 31775.2318795631. The cubic root of 1009665361 is about 1003.2114624684.

It can be divided in two parts, 10096 and 65361, that added together give a palindrome (75457).

The spelling of 1009665361 in words is "one billion, nine million, six hundred sixty-five thousand, three hundred sixty-one".