3142721513 has 2 divisors, whose sum is σ = 3142721514. Its totient is φ = 3142721512.

The previous prime is 3142721489. The next prime is 3142721531. The reversal of 3142721513 is 3151272413.

Together with next prime (3142721531) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2320637929 + 822083584 = 48173^2 + 28672^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3142721513 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (3142721563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1571360756 + 1571360757.

It is an arithmetic number, because the mean of its divisors is an integer number (1571360757).

Almost surely, 2^3142721513 is an apocalyptic number.

It is an amenable number.

3142721513 is a deficient number, since it is larger than the sum of its proper divisors (1).

3142721513 is an equidigital number, since it uses as much as digits as its factorization.

3142721513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5040, while the sum is 29.

The square root of 3142721513 is about 56059.9813860119. The cubic root of 3142721513 is about 1464.7672890780.

Adding to 3142721513 its reverse (3151272413), we get a palindrome (6293993926).

The spelling of 3142721513 in words is "three billion, one hundred forty-two million, seven hundred twenty-one thousand, five hundred thirteen".