1325866623 has 8 divisors (see below), whose sum is σ = 1768034736. Its totient is φ = 883804800.

The previous prime is 1325866571. The next prime is 1325866657. The reversal of 1325866623 is 3266685231.

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

It is not a de Polignac number, because 1325866623 - 2²⁴ = 1309089407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1325866723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9553 + ... + 52373.

It is an arithmetic number, because the mean of its divisors is an integer number (221004342).

Almost surely, 2^1325866623 is an apocalyptic number.

1325866623 is a deficient number, since it is larger than the sum of its proper divisors (442168113).

1325866623 is a wasteful number, since it uses less digits than its factorization.

1325866623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53145.

The product of its digits is 311040, while the sum is 42.

The square root of 1325866623 is about 36412.4514829749. The cubic root of 1325866623 is about 1098.5840246238.

The spelling of 1325866623 in words is "one billion, three hundred twenty-five million, eight hundred sixty-six thousand, six hundred twenty-three".