5148221957 has 2 divisors, whose sum is σ = 5148221958. Its totient is φ = 5148221956.

The previous prime is 5148221929. The next prime is 5148221963. The reversal of 5148221957 is 7591228415.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5127419236 + 20802721 = 71606^2 + 4561^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5148221957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5148221917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2574110978 + 2574110979.

It is an arithmetic number, because the mean of its divisors is an integer number (2574110979).

Almost surely, 2^5148221957 is an apocalyptic number.

It is an amenable number.

5148221957 is a deficient number, since it is larger than the sum of its proper divisors (1).

5148221957 is an equidigital number, since it uses as much as digits as its factorization.

5148221957 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 201600, while the sum is 44.

The square root of 5148221957 is about 71751.1111900018. Note that the first 4 decimals coincide. The cubic root of 5148221957 is about 1726.7087409724.

The spelling of 5148221957 in words is "five billion, one hundred forty-eight million, two hundred twenty-one thousand, nine hundred fifty-seven".