1948130279 has 2 divisors, whose sum is σ = 1948130280. Its totient is φ = 1948130278.

The previous prime is 1948130243. The next prime is 1948130297. The reversal of 1948130279 is 9720318491.

Together with next prime (1948130297) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1948130279 - 2²⁴ = 1931353063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1948130209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 974065139 + 974065140.

It is an arithmetic number, because the mean of its divisors is an integer number (974065140).

Almost surely, 2^1948130279 is an apocalyptic number.

1948130279 is a deficient number, since it is larger than the sum of its proper divisors (1).

1948130279 is an equidigital number, since it uses as much as digits as its factorization.

1948130279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 1948130279 is about 44137.6288330037. The cubic root of 1948130279 is about 1248.9335499261.

The spelling of 1948130279 in words is "one billion, nine hundred forty-eight million, one hundred thirty thousand, two hundred seventy-nine".