1918041341 has 2 divisors, whose sum is σ = 1918041342. Its totient is φ = 1918041340.

The previous prime is 1918041289. The next prime is 1918041373. The reversal of 1918041341 is 1431408191.

It is a happy number.

It is an a-pointer prime, because the next prime (1918041373) can be obtained adding 1918041341 to its sum of digits (32).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1856748100 + 61293241 = 43090^2 + 7829^2 .

It is an emirp because it is prime and its reverse (1431408191) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1918041341 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1918041298 and 1918041307.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1918071341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 959020670 + 959020671.

It is an arithmetic number, because the mean of its divisors is an integer number (959020671).

Almost surely, 2^1918041341 is an apocalyptic number.

It is an amenable number.

1918041341 is a deficient number, since it is larger than the sum of its proper divisors (1).

1918041341 is an equidigital number, since it uses as much as digits as its factorization.

1918041341 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 1918041341 is about 43795.4488617253. The cubic root of 1918041341 is about 1242.4702190758.

The spelling of 1918041341 in words is "one billion, nine hundred eighteen million, forty-one thousand, three hundred forty-one".