1373681005 has 8 divisors (see below), whose sum is σ = 1745383032. Its totient is φ = 1034300928.

The previous prime is 1373680999. The next prime is 1373681009. The reversal of 1373681005 is 5001863731.

It can be written as a sum of positive squares in 4 ways, for example, as 25542916 + 1348138089 = 5054^2 + 36717^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1373681005 - 2⁷ = 1373680877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1373681009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8080392 + ... + 8080561.

It is an arithmetic number, because the mean of its divisors is an integer number (218172879).

Almost surely, 2^1373681005 is an apocalyptic number.

It is an amenable number.

1373681005 is a deficient number, since it is larger than the sum of its proper divisors (371702027).

1373681005 is a wasteful number, since it uses less digits than its factorization.

1373681005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16160975.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 1373681005 is about 37063.2028432514. The cubic root of 1373681005 is about 1111.6343656363.

The spelling of 1373681005 in words is "one billion, three hundred seventy-three million, six hundred eighty-one thousand, five".