3107221540 has 24 divisors (see below), whose sum is σ = 6566733432. Its totient is φ = 1234970880.

The previous prime is 3107221499. The next prime is 3107221541. The reversal of 3107221540 is 451227013.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 321915364 + 2785306176 = 17942^2 + 52776^2 .

It is not an unprimeable number, because it can be changed into a prime (3107221541) 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 7 ways as a sum of consecutive naturals, for example, 491641 + ... + 497920.

It is an arithmetic number, because the mean of its divisors is an integer number (273613893).

Almost surely, 2^3107221540 is an apocalyptic number.

It is an amenable number.

3107221540 is an abundant number, since it is smaller than the sum of its proper divisors (3459511892).

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

3107221540 is a wasteful number, since it uses less digits than its factorization.

3107221540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 989727 (or 989725 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 3107221540 is about 55742.4572475954. The cubic root of 3107221540 is about 1459.2310863319.

Adding to 3107221540 its reverse (451227013), we get a palindrome (3558448553).

The spelling of 3107221540 in words is "three billion, one hundred seven million, two hundred twenty-one thousand, five hundred forty".