1240510513 has 24 divisors (see below), whose sum is σ = 1444060800. Its totient is φ = 1061866080.

The previous prime is 1240510511. The next prime is 1240510529. The reversal of 1240510513 is 3150150421.

It is a happy number.

It is not a de Polignac number, because 1240510513 - 2¹ = 1240510511 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1240510511) 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 23 ways as a sum of consecutive naturals, for example, 396168 + ... + 399286.

It is an arithmetic number, because the mean of its divisors is an integer number (60169200).

Almost surely, 2^1240510513 is an apocalyptic number.

It is an amenable number.

1240510513 is a deficient number, since it is larger than the sum of its proper divisors (203550287).

1240510513 is a wasteful number, since it uses less digits than its factorization.

1240510513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3333 (or 3322 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 1240510513 is about 35220.8817748789. The cubic root of 1240510513 is about 1074.4844870616.

Adding to 1240510513 its reverse (3150150421), we get a palindrome (4390660934).

The spelling of 1240510513 in words is "one billion, two hundred forty million, five hundred ten thousand, five hundred thirteen".