1306682073 has 6 divisors (see below), whose sum is σ = 1887429674. Its totient is φ = 871121376.

The previous prime is 1306682057. The next prime is 1306682093. The reversal of 1306682073 is 3702866031.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 945378009 + 361304064 = 30747^2 + 19008^2 .

It is not a de Polignac number, because 1306682073 - 2⁴ = 1306682057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1306682093) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 72593440 + ... + 72593457.

Almost surely, 2^1306682073 is an apocalyptic number.

It is an amenable number.

1306682073 is a deficient number, since it is larger than the sum of its proper divisors (580747601).

1306682073 is a wasteful number, since it uses less digits than its factorization.

1306682073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145186903 (or 145186900 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 1306682073 is about 36148.0576656617. The cubic root of 1306682073 is about 1093.2596285478.

The spelling of 1306682073 in words is "one billion, three hundred six million, six hundred eighty-two thousand, seventy-three".