1910917241 has 2 divisors, whose sum is σ = 1910917242. Its totient is φ = 1910917240.

The previous prime is 1910917223. The next prime is 1910917243. The reversal of 1910917241 is 1427190191.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1766436841 + 144480400 = 42029^2 + 12020^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1910917241 is a prime.

It is a Sophie Germain prime.

Together with 1910917243, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1910917243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 955458620 + 955458621.

It is an arithmetic number, because the mean of its divisors is an integer number (955458621).

Almost surely, 2^1910917241 is an apocalyptic number.

It is an amenable number.

1910917241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1910917241 is an equidigital number, since it uses as much as digits as its factorization.

1910917241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 35.

The square root of 1910917241 is about 43714.0394038346. The cubic root of 1910917241 is about 1240.9300257088.

The spelling of 1910917241 in words is "one billion, nine hundred ten million, nine hundred seventeen thousand, two hundred forty-one".