1949766113 has 2 divisors, whose sum is σ = 1949766114. Its totient is φ = 1949766112.

The previous prime is 1949766083. The next prime is 1949766127. The reversal of 1949766113 is 3116679491.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1898170624 + 51595489 = 43568^2 + 7183^2 .

It is an emirp because it is prime and its reverse (3116679491) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1949766113 - 2²² = 1945571809 is a prime.

It is not a weakly prime, because it can be changed into another prime (1949766163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 974883056 + 974883057.

It is an arithmetic number, because the mean of its divisors is an integer number (974883057).

Almost surely, 2^1949766113 is an apocalyptic number.

It is an amenable number.

1949766113 is a deficient number, since it is larger than the sum of its proper divisors (1).

1949766113 is an equidigital number, since it uses as much as digits as its factorization.

1949766113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 244944, while the sum is 47.

The square root of 1949766113 is about 44156.1560034385. The cubic root of 1949766113 is about 1249.2830262776.

The spelling of 1949766113 in words is "one billion, nine hundred forty-nine million, seven hundred sixty-six thousand, one hundred thirteen".