1323247605625 has 135 divisors (see below), whose sum is σ = 1878109742971. Its totient is φ = 931303120000.

The previous prime is 1323247605611. The next prime is 1323247605653. The reversal of 1323247605625 is 5265067423231.

The square root of 1323247605625 is 1150325.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 7 ways, for example, as 1285459355961 + 37788249664 = 1133781^2 + 194392^2 .

It is not a de Polignac number, because 1323247605625 - 2¹³ = 1323247597433 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 14867950581 + ... + 14867950669.

Almost surely, 2^{1323247605625} is an apocalyptic number.

1323247605625 is the 1150325-th square number.

1323247605625 is the 575163-rd centered octagonal number.

It is an amenable number.

1323247605625 is a deficient number, since it is larger than the sum of its proper divisors (554862137346).

1323247605625 is an frugal number, since it uses more digits than its factorization.

1323247605625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314 (or 152 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 46.

The spelling of 1323247605625 in words is "one trillion, three hundred twenty-three billion, two hundred forty-seven million, six hundred five thousand, six hundred twenty-five".