1948973413 has 2 divisors, whose sum is σ = 1948973414. Its totient is φ = 1948973412.

The previous prime is 1948973401. The next prime is 1948973419. The reversal of 1948973413 is 3143798491.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1458705249 + 490268164 = 38193^2 + 22142^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1948973413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1948973419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 974486706 + 974486707.

It is an arithmetic number, because the mean of its divisors is an integer number (974486707).

Almost surely, 2^1948973413 is an apocalyptic number.

It is an amenable number.

1948973413 is a deficient number, since it is larger than the sum of its proper divisors (1).

1948973413 is an equidigital number, since it uses as much as digits as its factorization.

1948973413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 653184, while the sum is 49.

The square root of 1948973413 is about 44147.1789925472. The cubic root of 1948973413 is about 1249.1136998328.

The spelling of 1948973413 in words is "one billion, nine hundred forty-eight million, nine hundred seventy-three thousand, four hundred thirteen".