1071201565 has 16 divisors (see below), whose sum is σ = 1519735680. Its totient is φ = 709208640.

The previous prime is 1071201557. The next prime is 1071201577. The reversal of 1071201565 is 5651021701.

It is not a de Polignac number, because 1071201565 - 2³ = 1071201557 is a prime.

It is a super-2 number, since 2×1071201565² = 2294945585716898450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 526671 + ... + 528700.

It is an arithmetic number, because the mean of its divisors is an integer number (94983480).

Almost surely, 2^1071201565 is an apocalyptic number.

It is an amenable number.

1071201565 is a deficient number, since it is larger than the sum of its proper divisors (448534115).

1071201565 is a wasteful number, since it uses less digits than its factorization.

1071201565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055412.

The product of its (nonzero) digits is 2100, while the sum is 28.

The square root of 1071201565 is about 32729.2157712341. The cubic root of 1071201565 is about 1023.1918357576.

The spelling of 1071201565 in words is "one billion, seventy-one million, two hundred one thousand, five hundred sixty-five".