1140395013 has 6 divisors (see below), whose sum is σ = 1647237254. Its totient is φ = 760263336.

The previous prime is 1140394973. The next prime is 1140395041. The reversal of 1140395013 is 3105930411.

It can be written as a sum of positive squares in only one way, i.e., 589178529 + 551216484 = 24273^2 + 23478^2 .

It is not a de Polignac number, because 1140395013 - 2¹⁸ = 1140132869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140391013) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 63355270 + ... + 63355287.

Almost surely, 2^1140395013 is an apocalyptic number.

It is an amenable number.

1140395013 is a deficient number, since it is larger than the sum of its proper divisors (506842241).

1140395013 is a wasteful number, since it uses less digits than its factorization.

1140395013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126710563 (or 126710560 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 1140395013 is about 33769.7351633086. The cubic root of 1140395013 is about 1044.7645701789.

The spelling of 1140395013 in words is "one billion, one hundred forty million, three hundred ninety-five thousand, thirteen".