1145524540 has 12 divisors (see below), whose sum is σ = 2405601576. Its totient is φ = 458209808.

The previous prime is 1145524531. The next prime is 1145524553. The reversal of 1145524540 is 454255411.

It is a happy number.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 28638094 + ... + 28638133.

It is an arithmetic number, because the mean of its divisors is an integer number (200466798).

Almost surely, 2^1145524540 is an apocalyptic number.

1145524540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1145524540 is an abundant number, since it is smaller than the sum of its proper divisors (1260077036).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1145524540 is a wasteful number, since it uses less digits than its factorization.

1145524540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57276236 (or 57276234 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 31.

The square root of 1145524540 is about 33845.5985321578. The cubic root of 1145524540 is about 1046.3286869492.

Adding to 1145524540 its reverse (454255411), we get a palindrome (1599779951).

The spelling of 1145524540 in words is "one billion, one hundred forty-five million, five hundred twenty-four thousand, five hundred forty".