1036811521 has 8 divisors (see below), whose sum is σ = 1127471400. Its totient is φ = 949448448.

The previous prime is 1036811507. The next prime is 1036811527. The reversal of 1036811521 is 1251186301.

It can be written as a sum of positive squares in 4 ways, for example, as 666672400 + 370139121 = 25820^2 + 19239^2 .

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 1036811521 - 2¹³ = 1036803329 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1036811521.

It is not an unprimeable number, because it can be changed into a prime (1036811527) 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, 823546 + ... + 824803.

It is an arithmetic number, because the mean of its divisors is an integer number (140933925).

Almost surely, 2^1036811521 is an apocalyptic number.

It is an amenable number.

1036811521 is a deficient number, since it is larger than the sum of its proper divisors (90659879).

1036811521 is a wasteful number, since it uses less digits than its factorization.

1036811521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1648403.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 1036811521 is about 32199.5577764664. The cubic root of 1036811521 is about 1012.1229472632.

Adding to 1036811521 its reverse (1251186301), we get a palindrome (2287997822).

The spelling of 1036811521 in words is "one billion, thirty-six million, eight hundred eleven thousand, five hundred twenty-one".