1279851383 has 2 divisors, whose sum is σ = 1279851384. Its totient is φ = 1279851382.

The previous prime is 1279851359. The next prime is 1279851499. The reversal of 1279851383 is 3831589721.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1279851383 - 2⁶ = 1279851319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1279751383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 639925691 + 639925692.

It is an arithmetic number, because the mean of its divisors is an integer number (639925692).

Almost surely, 2^1279851383 is an apocalyptic number.

1279851383 is a deficient number, since it is larger than the sum of its proper divisors (1).

1279851383 is an equidigital number, since it uses as much as digits as its factorization.

1279851383 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 47.

The square root of 1279851383 is about 35775.0105939886. The cubic root of 1279851383 is about 1085.7250232820.

The spelling of 1279851383 in words is "one billion, two hundred seventy-nine million, eight hundred fifty-one thousand, three hundred eighty-three".