1201607005 has 16 divisors (see below), whose sum is σ = 1568015280. Its totient is φ = 880284672.

The previous prime is 1201606979. The next prime is 1201607023. The reversal of 1201607005 is 5007061021.

It can be written as a sum of positive squares in 8 ways, for example, as 379236676 + 822370329 = 19474^2 + 28677^2 .

It is a cyclic number.

It is not a de Polignac number, because 1201607005 - 2²¹ = 1199509853 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 187890 + ... + 194179.

It is an arithmetic number, because the mean of its divisors is an integer number (98000955).

Almost surely, 2^1201607005 is an apocalyptic number.

It is an amenable number.

1201607005 is a deficient number, since it is larger than the sum of its proper divisors (366408275).

1201607005 is a wasteful number, since it uses less digits than its factorization.

1201607005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382128.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 1201607005 is about 34664.2035102496. The cubic root of 1201607005 is about 1063.1327180440.

Adding to 1201607005 its reverse (5007061021), we get a palindrome (6208668026).

The spelling of 1201607005 in words is "one billion, two hundred one million, six hundred seven thousand, five".