1394873105 has 4 divisors (see below), whose sum is σ = 1673847732. Its totient is φ = 1115898480.

The previous prime is 1394873099. The next prime is 1394873113. The reversal of 1394873105 is 5013784931.

It is a Cunningham number, because it is equal to 37348²+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 502118464 + 892754641 = 22408^2 + 29879^2 .

It is not a de Polignac number, because 1394873105 - 2¹² = 1394869009 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139487306 + ... + 139487315.

It is an arithmetic number, because the mean of its divisors is an integer number (418461933).

Almost surely, 2^1394873105 is an apocalyptic number.

It is an amenable number.

1394873105 is a deficient number, since it is larger than the sum of its proper divisors (278974627).

1394873105 is an equidigital number, since it uses as much as digits as its factorization.

1394873105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278974626.

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 1394873105 is about 37348.0000133876. Note that the first 4 decimals coincide. The cubic root of 1394873105 is about 1117.3217001375.

The spelling of 1394873105 in words is "one billion, three hundred ninety-four million, eight hundred seventy-three thousand, one hundred five".