1151523265 has 8 divisors (see below), whose sum is σ = 1411228800. Its totient is φ = 901618032.

The previous prime is 1151523259. The next prime is 1151523281. The reversal of 1151523265 is 5623251511.

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 1151523265 - 2⁹ = 1151522753 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2449815 + ... + 2450284.

It is an arithmetic number, because the mean of its divisors is an integer number (176403600).

Almost surely, 2^1151523265 is an apocalyptic number.

It is an amenable number.

1151523265 is a deficient number, since it is larger than the sum of its proper divisors (259705535).

1151523265 is an equidigital number, since it uses as much as digits as its factorization.

1151523265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4900151.

The product of its digits is 9000, while the sum is 31.

The square root of 1151523265 is about 33934.1018004013. The cubic root of 1151523265 is about 1048.1519313484.

Adding to 1151523265 its reverse (5623251511), we get a palindrome (6774774776).

The spelling of 1151523265 in words is "one billion, one hundred fifty-one million, five hundred twenty-three thousand, two hundred sixty-five".