1145011523 has 8 divisors (see below), whose sum is σ = 1235240928. Its totient is φ = 1057323904.

The previous prime is 1145011493. The next prime is 1145011529. The reversal of 1145011523 is 3251105411.

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 1145011523 - 2¹⁰ = 1145010499 is a prime.

It is a super-2 number, since 2×1145011523² = 2622102775605559058, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1145011529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 634511 + ... + 636312.

It is an arithmetic number, because the mean of its divisors is an integer number (154405116).

Almost surely, 2^1145011523 is an apocalyptic number.

1145011523 is a deficient number, since it is larger than the sum of its proper divisors (90229405).

1145011523 is a wasteful number, since it uses less digits than its factorization.

1145011523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1270893.

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 1145011523 is about 33838.0188988658. The cubic root of 1145011523 is about 1046.1724660690.

Adding to 1145011523 its reverse (3251105411), we get a palindrome (4396116934).

The spelling of 1145011523 in words is "one billion, one hundred forty-five million, eleven thousand, five hundred twenty-three".