1051718917 has 2 divisors, whose sum is σ = 1051718918. Its totient is φ = 1051718916.

The previous prime is 1051718903. The next prime is 1051718929. The reversal of 1051718917 is 7198171501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 817445281 + 234273636 = 28591^2 + 15306^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1051718917 is a prime.

It is a super-2 number, since 2×1051718917² = 2212225360751305778, which contains 22 as substring.

It is a zygodrome in base 4.

It is a self number, because there is not a number n which added to its sum of digits gives 1051718917.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1051718947) 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, 525859458 + 525859459.

It is an arithmetic number, because the mean of its divisors is an integer number (525859459).

Almost surely, 2^1051718917 is an apocalyptic number.

It is an amenable number.

1051718917 is a deficient number, since it is larger than the sum of its proper divisors (1).

1051718917 is an equidigital number, since it uses as much as digits as its factorization.

1051718917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17640, while the sum is 40.

The square root of 1051718917 is about 32430.2161109050. The cubic root of 1051718917 is about 1016.9506896627.

The spelling of 1051718917 in words is "one billion, fifty-one million, seven hundred eighteen thousand, nine hundred seventeen".