1145013640 has 16 divisors (see below), whose sum is σ = 2576280780. Its totient is φ = 458005440.

The previous prime is 1145013637. The next prime is 1145013659. The reversal of 1145013640 is 463105411.

It can be written as a sum of positive squares in 2 ways, for example, as 1134477124 + 10536516 = 33682^2 + 3246^2 .

It is a super-2 number, since 2×1145013640² = 2622112471572099200, which contains 22 as substring.

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, 14312631 + ... + 14312710.

Almost surely, 2^1145013640 is an apocalyptic number.

1145013640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1145013640 is an abundant number, since it is smaller than the sum of its proper divisors (1431267140).

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

1145013640 is a wasteful number, since it uses less digits than its factorization.

1145013640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28625352 (or 28625348 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 1145013640 is about 33838.0501802335. The cubic root of 1145013640 is about 1046.1731108210.

The spelling of 1145013640 in words is "one billion, one hundred forty-five million, thirteen thousand, six hundred forty".