3125051731 has 2 divisors, whose sum is σ = 3125051732. Its totient is φ = 3125051730.

The previous prime is 3125051717. The next prime is 3125051801. The reversal of 3125051731 is 1371505213.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3125051731 - 2⁹ = 3125051219 is a prime.

It is a super-2 number, since 2×3125051731² = 19531896642852192722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3125051731.

It is not a weakly prime, because it can be changed into another prime (3125057731) 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 as a sum of consecutive naturals, namely, 1562525865 + 1562525866.

It is an arithmetic number, because the mean of its divisors is an integer number (1562525866).

Almost surely, 2^3125051731 is an apocalyptic number.

3125051731 is a deficient number, since it is larger than the sum of its proper divisors (1).

3125051731 is an equidigital number, since it uses as much as digits as its factorization.

3125051731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3150, while the sum is 28.

The square root of 3125051731 is about 55902.1621317101. The cubic root of 3125051731 is about 1462.0169363879.

Adding to 3125051731 its reverse (1371505213), we get a palindrome (4496556944).

The spelling of 3125051731 in words is "three billion, one hundred twenty-five million, fifty-one thousand, seven hundred thirty-one".