1051671749 has 2 divisors, whose sum is σ = 1051671750. Its totient is φ = 1051671748.

The previous prime is 1051671727. The next prime is 1051671763. The reversal of 1051671749 is 9471761501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 903002500 + 148669249 = 30050^2 + 12193^2 .

It is an emirp because it is prime and its reverse (9471761501) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1051671749 - 2²⁰ = 1050623173 is a prime.

It is a super-2 number, since 2×1051671749² = 2212026935289438002, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1051671449) 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, 525835874 + 525835875.

It is an arithmetic number, because the mean of its divisors is an integer number (525835875).

Almost surely, 2^1051671749 is an apocalyptic number.

It is an amenable number.

1051671749 is a deficient number, since it is larger than the sum of its proper divisors (1).

1051671749 is an equidigital number, since it uses as much as digits as its factorization.

1051671749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52920, while the sum is 41.

The square root of 1051671749 is about 32429.4888797218. The cubic root of 1051671749 is about 1016.9354865362.

The spelling of 1051671749 in words is "one billion, fifty-one million, six hundred seventy-one thousand, seven hundred forty-nine".