1399473319 has 2 divisors, whose sum is σ = 1399473320. Its totient is φ = 1399473318.

The previous prime is 1399473289. The next prime is 1399473359. The reversal of 1399473319 is 9133749931.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1399473319 - 2¹³ = 1399465127 is a prime.

It is a super-2 number, since 2×1399473319² = 3917051141185751522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1399473359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 699736659 + 699736660.

It is an arithmetic number, because the mean of its divisors is an integer number (699736660).

Almost surely, 2^1399473319 is an apocalyptic number.

1399473319 is a deficient number, since it is larger than the sum of its proper divisors (1).

1399473319 is an equidigital number, since it uses as much as digits as its factorization.

1399473319 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 551124, while the sum is 49.

The square root of 1399473319 is about 37409.5351347755. The cubic root of 1399473319 is about 1118.5486406264.

The spelling of 1399473319 in words is "one billion, three hundred ninety-nine million, four hundred seventy-three thousand, three hundred nineteen".