1308528601 has 4 divisors (see below), whose sum is σ = 1308758992. Its totient is φ = 1308298212.

The previous prime is 1308528563. The next prime is 1308528647. The reversal of 1308528601 is 1068258031.

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 a de Polignac number, because none of the positive numbers 2^k-1308528601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1308528701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106455 + ... + 118108.

It is an arithmetic number, because the mean of its divisors is an integer number (327189748).

Almost surely, 2^1308528601 is an apocalyptic number.

It is an amenable number.

1308528601 is a deficient number, since it is larger than the sum of its proper divisors (230391).

1308528601 is an equidigital number, since it uses as much as digits as its factorization.

1308528601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230390.

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 1308528601 is about 36173.5898273865. The cubic root of 1308528601 is about 1093.7743633822.

The spelling of 1308528601 in words is "one billion, three hundred eight million, five hundred twenty-eight thousand, six hundred one".