1101072065 has 8 divisors (see below), whose sum is σ = 1399009320. Its totient is φ = 829042432.

The previous prime is 1101072053. The next prime is 1101072073. The reversal of 1101072065 is 5602701011.

It can be written as a sum of positive squares in 4 ways, for example, as 319086769 + 781985296 = 17863^2 + 27964^2 .

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 1101072065 - 2¹⁸ = 1100809921 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1101072065.

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, 6476810 + ... + 6476979.

It is an arithmetic number, because the mean of its divisors is an integer number (174876165).

Almost surely, 2^1101072065 is an apocalyptic number.

It is an amenable number.

1101072065 is a deficient number, since it is larger than the sum of its proper divisors (297937255).

1101072065 is a wasteful number, since it uses less digits than its factorization.

1101072065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12953811.

The product of its (nonzero) digits is 420, while the sum is 23.

The square root of 1101072065 is about 33182.4059555663. The cubic root of 1101072065 is about 1032.6153615334.

Adding to 1101072065 its reverse (5602701011), we get a palindrome (6703773076).

The spelling of 1101072065 in words is "one billion, one hundred one million, seventy-two thousand, sixty-five".