3125312501 has 2 divisors, whose sum is σ = 3125312502. Its totient is φ = 3125312500.

The previous prime is 3125312471. The next prime is 3125312503. The reversal of 3125312501 is 1052135213.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2918700625 + 206611876 = 54025^2 + 14374^2 .

It is an emirp because it is prime and its reverse (1052135213) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3125312501 - 2¹⁴ = 3125296117 is a prime.

Together with 3125312503, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3125312503) 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, 1562656250 + 1562656251.

It is an arithmetic number, because the mean of its divisors is an integer number (1562656251).

Almost surely, 2^3125312501 is an apocalyptic number.

It is an amenable number.

3125312501 is a deficient number, since it is larger than the sum of its proper divisors (1).

3125312501 is an equidigital number, since it uses as much as digits as its factorization.

3125312501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 3125312501 is about 55904.4944615368. The cubic root of 3125312501 is about 1462.0576012670.

Adding to 3125312501 its reverse (1052135213), we get a palindrome (4177447714).

The spelling of 3125312501 in words is "three billion, one hundred twenty-five million, three hundred twelve thousand, five hundred one".