1145310523 has 32 divisors (see below), whose sum is σ = 1379524608. Its totient is φ = 930451200.

The previous prime is 1145310487. The next prime is 1145310533. The reversal of 1145310523 is 3250135411.

It is a happy number.

It is not a de Polignac number, because 1145310523 - 2¹³ = 1145302331 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1145310533) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2657118 + ... + 2657548.

It is an arithmetic number, because the mean of its divisors is an integer number (43110144).

Almost surely, 2^1145310523 is an apocalyptic number.

1145310523 is a deficient number, since it is larger than the sum of its proper divisors (234214085).

1145310523 is a wasteful number, since it uses less digits than its factorization.

1145310523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 1145310523 is about 33842.4367178252. The cubic root of 1145310523 is about 1046.2635214389.

Adding to 1145310523 its reverse (3250135411), we get a palindrome (4395445934).

The spelling of 1145310523 in words is "one billion, one hundred forty-five million, three hundred ten thousand, five hundred twenty-three".