1145152665 has 12 divisors (see below), whose sum is σ = 1984931364. Its totient is φ = 610748064.

The previous prime is 1145152663. The next prime is 1145152709. The reversal of 1145152665 is 5662515411.

1145152665 is a `hidden beast` number, since 114 + 515 + 26 + 6 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 260209161 + 884943504 = 16131^2 + 29748^2 .

It is not a de Polignac number, because 1145152665 - 2¹ = 1145152663 is a prime.

It is a super-2 number, since 2×1145152665² = 2622749252313204450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1145152663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12723874 + ... + 12723963.

It is an arithmetic number, because the mean of its divisors is an integer number (165410947).

Almost surely, 2^1145152665 is an apocalyptic number.

1145152665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1145152665 is a deficient number, since it is larger than the sum of its proper divisors (839778699).

1145152665 is a wasteful number, since it uses less digits than its factorization.

1145152665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25447848 (or 25447845 counting only the distinct ones).

The product of its digits is 36000, while the sum is 36.

The square root of 1145152665 is about 33840.1043881369. The cubic root of 1145152665 is about 1046.2154504420.

The spelling of 1145152665 in words is "one billion, one hundred forty-five million, one hundred fifty-two thousand, six hundred sixty-five".