1306530601 has 4 divisors (see below), whose sum is σ = 1307062672. Its totient is φ = 1305998532.

The previous prime is 1306530583. The next prime is 1306530629. The reversal of 1306530601 is 1060356031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1306530601 - 2⁹ = 1306530089 is a prime.

It is a super-2 number, since 2×1306530601² = 3414044422698842402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1306530101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 262335 + ... + 267268.

It is an arithmetic number, because the mean of its divisors is an integer number (326765668).

Almost surely, 2^1306530601 is an apocalyptic number.

It is an amenable number.

1306530601 is a deficient number, since it is larger than the sum of its proper divisors (532071).

1306530601 is an equidigital number, since it uses as much as digits as its factorization.

1306530601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532070.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 1306530601 is about 36145.9624439577. The cubic root of 1306530601 is about 1093.2173829689.

Adding to 1306530601 its reverse (1060356031), we get a palindrome (2366886632).

The spelling of 1306530601 in words is "one billion, three hundred six million, five hundred thirty thousand, six hundred one".