1948715099 has 2 divisors, whose sum is σ = 1948715100. Its totient is φ = 1948715098.

The previous prime is 1948715053. The next prime is 1948715101. The reversal of 1948715099 is 9905178491.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1948715099 - 2⁸ = 1948714843 is a prime.

Together with 1948715101, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1948715099.

It is not a weakly prime, because it can be changed into another prime (1948715009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 974357549 + 974357550.

It is an arithmetic number, because the mean of its divisors is an integer number (974357550).

Almost surely, 2^1948715099 is an apocalyptic number.

1948715099 is a deficient number, since it is larger than the sum of its proper divisors (1).

1948715099 is an equidigital number, since it uses as much as digits as its factorization.

1948715099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 816480, while the sum is 53.

The square root of 1948715099 is about 44144.2532953045. The cubic root of 1948715099 is about 1249.0585121786.

The spelling of 1948715099 in words is "one billion, nine hundred forty-eight million, seven hundred fifteen thousand, ninety-nine".