4140505321 has 2 divisors, whose sum is σ = 4140505322. Its totient is φ = 4140505320.

The previous prime is 4140505307. The next prime is 4140505399. The reversal of 4140505321 is 1235050414.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4115864025 + 24641296 = 64155^2 + 4964^2 .

It is a cyclic number.

It is not a de Polignac number, because 4140505321 - 2²⁹ = 3603634409 is a prime.

It is not a weakly prime, because it can be changed into another prime (4140500321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2070252660 + 2070252661.

It is an arithmetic number, because the mean of its divisors is an integer number (2070252661).

Almost surely, 2^4140505321 is an apocalyptic number.

It is an amenable number.

4140505321 is a deficient number, since it is larger than the sum of its proper divisors (1).

4140505321 is an equidigital number, since it uses as much as digits as its factorization.

4140505321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 4140505321 is about 64346.7584342832. The cubic root of 4140505321 is about 1605.7741009543.

Adding to 4140505321 its reverse (1235050414), we get a palindrome (5375555735).

The spelling of 4140505321 in words is "four billion, one hundred forty million, five hundred five thousand, three hundred twenty-one".