2051297317 has 2 divisors, whose sum is σ = 2051297318. Its totient is φ = 2051297316.

The previous prime is 2051297267. The next prime is 2051297341. The reversal of 2051297317 is 7137921502.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1964173761 + 87123556 = 44319^2 + 9334^2 .

It is a cyclic number.

It is not a de Polignac number, because 2051297317 - 2¹¹ = 2051295269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2051297357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1025648658 + 1025648659.

It is an arithmetic number, because the mean of its divisors is an integer number (1025648659).

Almost surely, 2^2051297317 is an apocalyptic number.

It is an amenable number.

2051297317 is a deficient number, since it is larger than the sum of its proper divisors (1).

2051297317 is an equidigital number, since it uses as much as digits as its factorization.

2051297317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26460, while the sum is 37.

The square root of 2051297317 is about 45291.2498944333. The cubic root of 2051297317 is about 1270.6020079745.

The spelling of 2051297317 in words is "two billion, fifty-one million, two hundred ninety-seven thousand, three hundred seventeen".