1379851279 has 2 divisors, whose sum is σ = 1379851280. Its totient is φ = 1379851278.

The previous prime is 1379851181. The next prime is 1379851301. The reversal of 1379851279 is 9721589731.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1379851279 - 2⁹ = 1379850767 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1379851379) 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, 689925639 + 689925640.

It is an arithmetic number, because the mean of its divisors is an integer number (689925640).

Almost surely, 2^1379851279 is an apocalyptic number.

1379851279 is a deficient number, since it is larger than the sum of its proper divisors (1).

1379851279 is an equidigital number, since it uses as much as digits as its factorization.

1379851279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 952560, while the sum is 52.

The square root of 1379851279 is about 37146.3494707084. The cubic root of 1379851279 is about 1113.2962857641.

The spelling of 1379851279 in words is "one billion, three hundred seventy-nine million, eight hundred fifty-one thousand, two hundred seventy-nine".