1145437165 has 8 divisors (see below), whose sum is σ = 1377588600. Its totient is φ = 914307072.

The previous prime is 1145437129. The next prime is 1145437229. The reversal of 1145437165 is 5617345411.

It can be written as a sum of positive squares in 4 ways, for example, as 115476516 + 1029960649 = 10746^2 + 32093^2 .

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 1145437165 - 2¹¹ = 1145435117 is a prime.

It is a congruent 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, 252864 + ... + 257353.

It is an arithmetic number, because the mean of its divisors is an integer number (172198575).

Almost surely, 2^1145437165 is an apocalyptic number.

It is an amenable number.

1145437165 is a deficient number, since it is larger than the sum of its proper divisors (232151435).

1145437165 is an equidigital number, since it uses as much as digits as its factorization.

1145437165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510671.

The product of its digits is 50400, while the sum is 37.

The square root of 1145437165 is about 33844.3077193197. The cubic root of 1145437165 is about 1046.3020833307.

The spelling of 1145437165 in words is "one billion, one hundred forty-five million, four hundred thirty-seven thousand, one hundred sixty-five".