1065201985 has 8 divisors (see below), whose sum is σ = 1285897536. Its totient is φ = 847058160.

The previous prime is 1065201961. The next prime is 1065202007. The reversal of 1065201985 is 5891025601.

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

It is a de Polignac number, because none of the positive numbers 2^k-1065201985 is a prime.

It is a super-2 number, since 2×1065201985² = 2269310537695880450, which contains 22 as substring.

It is a Duffinian 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, 637011 + ... + 638680.

It is an arithmetic number, because the mean of its divisors is an integer number (160737192).

Almost surely, 2^1065201985 is an apocalyptic number.

It is an amenable number.

1065201985 is a deficient number, since it is larger than the sum of its proper divisors (220695551).

1065201985 is a wasteful number, since it uses less digits than its factorization.

1065201985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1275863.

The product of its (nonzero) digits is 21600, while the sum is 37.

The square root of 1065201985 is about 32637.4322672602. The cubic root of 1065201985 is about 1021.2780292307.

The spelling of 1065201985 in words is "one billion, sixty-five million, two hundred one thousand, nine hundred eighty-five".