240515316139 has 16 divisors (see below), whose sum is σ = 285996784320. Its totient is φ = 197896567680.

The previous prime is 240515316137. The next prime is 240515316179. The reversal of 240515316139 is 931613515042.

It is a happy number.

It is not a de Polignac number, because 240515316139 - 2¹ = 240515316137 is a prime.

It is a super-2 number, since 2×240515316139² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (240515316137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3389172 + ... + 3459409.

It is an arithmetic number, because the mean of its divisors is an integer number (17874799020).

Almost surely, 2^240515316139 is an apocalyptic number.

240515316139 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

240515316139 is a deficient number, since it is larger than the sum of its proper divisors (45481468181).

240515316139 is a wasteful number, since it uses less digits than its factorization.

240515316139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6848790.

The product of its (nonzero) digits is 97200, while the sum is 40.

The spelling of 240515316139 in words is "two hundred forty billion, five hundred fifteen million, three hundred sixteen thousand, one hundred thirty-nine".