316025641 has 2 divisors, whose sum is σ = 316025642. Its totient is φ = 316025640.

The previous prime is 316025639. The next prime is 316025669. The reversal of 316025641 is 146520613.

It is an a-pointer prime, because the next prime (316025669) can be obtained adding 316025641 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 212576400 + 103449241 = 14580^2 + 10171^2 .

It is a cyclic number.

It is not a de Polignac number, because 316025641 - 2¹ = 316025639 is a prime.

It is a super-3 number, since 3×316025641³ (a number of 26 digits) contains 333 as substring.

Together with 316025639, it forms a pair of twin primes.

316025641 is a modest number, since divided by 25641 gives 316 as remainder.

It is not a weakly prime, because it can be changed into another prime (316025041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158012820 + 158012821.

It is an arithmetic number, because the mean of its divisors is an integer number (158012821).

Almost surely, 2^316025641 is an apocalyptic number.

It is an amenable number.

316025641 is a deficient number, since it is larger than the sum of its proper divisors (1).

316025641 is an equidigital number, since it uses as much as digits as its factorization.

316025641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 316025641 is about 17777.1100294733. The cubic root of 316025641 is about 681.1468830711.

The spelling of 316025641 in words is "three hundred sixteen million, twenty-five thousand, six hundred forty-one".