1285479319 has 2 divisors, whose sum is σ = 1285479320. Its totient is φ = 1285479318.

The previous prime is 1285479301. The next prime is 1285479329. The reversal of 1285479319 is 9139745821.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1285479319 - 2⁹ = 1285478807 is a prime.

It is a super-2 number, since 2×1285479319² = 3304914159153407522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1285479329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 642739659 + 642739660.

It is an arithmetic number, because the mean of its divisors is an integer number (642739660).

Almost surely, 2^1285479319 is an apocalyptic number.

1285479319 is a deficient number, since it is larger than the sum of its proper divisors (1).

1285479319 is an equidigital number, since it uses as much as digits as its factorization.

1285479319 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 544320, while the sum is 49.

The square root of 1285479319 is about 35853.5816760334. The cubic root of 1285479319 is about 1087.3141286949.

The spelling of 1285479319 in words is "one billion, two hundred eighty-five million, four hundred seventy-nine thousand, three hundred nineteen".