1152405565 has 8 divisors (see below), whose sum is σ = 1386806328. Its totient is φ = 919311360.

The previous prime is 1152405539. The next prime is 1152405577. The reversal of 1152405565 is 5655042511.

It can be written as a sum of positive squares in 4 ways, for example, as 177342489 + 975063076 = 13317^2 + 31226^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1152405565 - 2⁵ = 1152405533 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1152405565.

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, 324696 + ... + 328225.

It is an arithmetic number, because the mean of its divisors is an integer number (173350791).

Almost surely, 2^1152405565 is an apocalyptic number.

It is an amenable number.

1152405565 is a deficient number, since it is larger than the sum of its proper divisors (234400763).

1152405565 is an equidigital number, since it uses as much as digits as its factorization.

1152405565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653279.

The product of its (nonzero) digits is 30000, while the sum is 34.

The square root of 1152405565 is about 33947.0995079108. The cubic root of 1152405565 is about 1048.4195618824.

The spelling of 1152405565 in words is "one billion, one hundred fifty-two million, four hundred five thousand, five hundred sixty-five".