1305528029 has 4 divisors (see below), whose sum is σ = 1405953276. Its totient is φ = 1205102784.

The previous prime is 1305528023. The next prime is 1305528043. The reversal of 1305528029 is 9208255031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9208255031 = 64579 ⋅142589.

It can be written as a sum of positive squares in 2 ways, for example, as 420168004 + 885360025 = 20498^2 + 29755^2 .

It is a cyclic number.

It is not a de Polignac number, because 1305528029 - 2⁴ = 1305528013 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1305528029.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1305528023) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 50212604 + ... + 50212629.

It is an arithmetic number, because the mean of its divisors is an integer number (351488319).

Almost surely, 2^1305528029 is an apocalyptic number.

It is an amenable number.

1305528029 is a deficient number, since it is larger than the sum of its proper divisors (100425247).

1305528029 is a wasteful number, since it uses less digits than its factorization.

1305528029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100425246.

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 1305528029 is about 36132.0914008586. The cubic root of 1305528029 is about 1092.9376830256.

The spelling of 1305528029 in words is "one billion, three hundred five million, five hundred twenty-eight thousand, twenty-nine".