1150521065 has 16 divisors (see below), whose sum is σ = 1442188800. Its totient is φ = 879460032.

The previous prime is 1150521023. The next prime is 1150521077. The reversal of 1150521065 is 5601250511.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1150521065 is a prime.

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, 114671 + ... + 124299.

It is an arithmetic number, because the mean of its divisors is an integer number (90136800).

Almost surely, 2^1150521065 is an apocalyptic number.

It is an amenable number.

1150521065 is a deficient number, since it is larger than the sum of its proper divisors (291667735).

1150521065 is a wasteful number, since it uses less digits than its factorization.

1150521065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10696.

The product of its (nonzero) digits is 1500, while the sum is 26.

The square root of 1150521065 is about 33919.3317298558. The cubic root of 1150521065 is about 1047.8477653243.

Adding to 1150521065 its reverse (5601250511), we get a palindrome (6751771576).

The spelling of 1150521065 in words is "one billion, one hundred fifty million, five hundred twenty-one thousand, sixty-five".