1394873099 has 2 divisors, whose sum is σ = 1394873100. Its totient is φ = 1394873098.

The previous prime is 1394873093. The next prime is 1394873113. The reversal of 1394873099 is 9903784931.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1394873099 - 2²⁸ = 1126437643 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1394873099.

It is not a weakly prime, because it can be changed into another prime (1394873093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 697436549 + 697436550.

It is an arithmetic number, because the mean of its divisors is an integer number (697436550).

Almost surely, 2^1394873099 is an apocalyptic number.

1394873099 is a deficient number, since it is larger than the sum of its proper divisors (1).

1394873099 is an equidigital number, since it uses as much as digits as its factorization.

1394873099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1469664, while the sum is 53.

The square root of 1394873099 is about 37347.9999330620. Note that the first 4 decimals coincide. The cubic root of 1394873099 is about 1117.3216985354.

The spelling of 1394873099 in words is "one billion, three hundred ninety-four million, eight hundred seventy-three thousand, ninety-nine".