1065248259 has 4 divisors (see below), whose sum is σ = 1420331016. Its totient is φ = 710165504.

The previous prime is 1065248251. The next prime is 1065248299. The reversal of 1065248259 is 9528425601.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1065248259 - 2³ = 1065248251 is a prime.

It is a super-2 number, since 2×1065248259² = 2269507706605062162, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1065248259.

It is not an unprimeable number, because it can be changed into a prime (1065248251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177541374 + ... + 177541379.

It is an arithmetic number, because the mean of its divisors is an integer number (355082754).

Almost surely, 2^1065248259 is an apocalyptic number.

1065248259 is a deficient number, since it is larger than the sum of its proper divisors (355082757).

1065248259 is an equidigital number, since it uses as much as digits as its factorization.

1065248259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355082756.

The product of its (nonzero) digits is 172800, while the sum is 42.

The square root of 1065248259 is about 32638.1411694968. The cubic root of 1065248259 is about 1021.2928176420.

The spelling of 1065248259 in words is "one billion, sixty-five million, two hundred forty-eight thousand, two hundred fifty-nine".