1948316057 has 2 divisors, whose sum is σ = 1948316058. Its totient is φ = 1948316056.

The previous prime is 1948316033. The next prime is 1948316089. The reversal of 1948316057 is 7506138491.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1888423936 + 59892121 = 43456^2 + 7739^2 .

It is a cyclic number.

It is not a de Polignac number, because 1948316057 - 2⁸ = 1948315801 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1948315999 and 1948316017.

It is not a weakly prime, because it can be changed into another prime (1948316857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 974158028 + 974158029.

It is an arithmetic number, because the mean of its divisors is an integer number (974158029).

Almost surely, 2^1948316057 is an apocalyptic number.

It is an amenable number.

1948316057 is a deficient number, since it is larger than the sum of its proper divisors (1).

1948316057 is an equidigital number, since it uses as much as digits as its factorization.

1948316057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 1948316057 is about 44139.7333136484. The cubic root of 1948316057 is about 1248.9732490169.

The spelling of 1948316057 in words is "one billion, nine hundred forty-eight million, three hundred sixteen thousand, fifty-seven".