1145509260 has 72 divisors (see below), whose sum is σ = 3731096880. Its totient is φ = 261830016.

The previous prime is 1145509237. The next prime is 1145509327. The reversal of 1145509260 is 629055411.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 191875 + ... + 197754.

It is an arithmetic number, because the mean of its divisors is an integer number (51820790).

Almost surely, 2^1145509260 is an apocalyptic number.

1145509260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1145509260 is an abundant number, since it is smaller than the sum of its proper divisors (2585587620).

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

1145509260 is a wasteful number, since it uses less digits than its factorization.

1145509260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389655 (or 389646 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 1145509260 is about 33845.3728004287. The cubic root of 1145509260 is about 1046.3240346486.

The spelling of 1145509260 in words is "one billion, one hundred forty-five million, five hundred nine thousand, two hundred sixty".