1145056523 has 8 divisors (see below), whose sum is σ = 1233430128. Its totient is φ = 1056724704.

The previous prime is 1145056519. The next prime is 1145056543. The reversal of 1145056523 is 3256505411.

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 1145056523 - 2² = 1145056519 is a prime.

It is a super-2 number, since 2×1145056523² = 2622308881729699058, which contains 22 as substring.

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 1145056523.

It is not an unprimeable number, because it can be changed into a prime (1145056543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68765 + ... + 83777.

It is an arithmetic number, because the mean of its divisors is an integer number (154178766).

Almost surely, 2^1145056523 is an apocalyptic number.

1145056523 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1145056523 is a deficient number, since it is larger than the sum of its proper divisors (88373605).

1145056523 is a wasteful number, since it uses less digits than its factorization.

1145056523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20893.

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 1145056523 is about 33838.6838248771. The cubic root of 1145056523 is about 1046.1861710676.

The spelling of 1145056523 in words is "one billion, one hundred forty-five million, fifty-six thousand, five hundred twenty-three".