3125344513 has 2 divisors, whose sum is σ = 3125344514. Its totient is φ = 3125344512.

The previous prime is 3125344507. The next prime is 3125344543. The reversal of 3125344513 is 3154435213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1716693489 + 1408651024 = 41433^2 + 37532^2 .

It is an emirp because it is prime and its reverse (3154435213) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3125344513 is a prime.

It is not a weakly prime, because it can be changed into another prime (3125344543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1562672256 + 1562672257.

It is an arithmetic number, because the mean of its divisors is an integer number (1562672257).

Almost surely, 2^3125344513 is an apocalyptic number.

It is an amenable number.

3125344513 is a deficient number, since it is larger than the sum of its proper divisors (1).

3125344513 is an equidigital number, since it uses as much as digits as its factorization.

3125344513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21600, while the sum is 31.

The square root of 3125344513 is about 55904.7807705209. The cubic root of 3125344513 is about 1462.0625931121.

Adding to 3125344513 its reverse (3154435213), we get a palindrome (6279779726).

The spelling of 3125344513 in words is "three billion, one hundred twenty-five million, three hundred forty-four thousand, five hundred thirteen".