1325643029 has 8 divisors (see below), whose sum is σ = 1333935000. Its totient is φ = 1317376512.

The previous prime is 1325642971. The next prime is 1325643089. The reversal of 1325643029 is 9203465231.

It can be written as a sum of positive squares in 4 ways, for example, as 272316004 + 1053327025 = 16502^2 + 32455^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1325643029 - 2²⁸ = 1057207573 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1325643029.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1325643089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103997 + ... + 116045.

It is an arithmetic number, because the mean of its divisors is an integer number (166741875).

Almost surely, 2^1325643029 is an apocalyptic number.

It is an amenable number.

1325643029 is a deficient number, since it is larger than the sum of its proper divisors (8291971).

1325643029 is a wasteful number, since it uses less digits than its factorization.

1325643029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12727.

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 1325643029 is about 36409.3810576340. The cubic root of 1325643029 is about 1098.5222661227.

The spelling of 1325643029 in words is "one billion, three hundred twenty-five million, six hundred forty-three thousand, twenty-nine".