1326989925 has 96 divisors (see below), whose sum is σ = 2592691200. Its totient is φ = 663526080.

The previous prime is 1326989903. The next prime is 1326989959. The reversal of 1326989925 is 5299896231.

It is a happy number.

It is not a de Polignac number, because 1326989925 - 2⁶ = 1326989861 is a prime.

It is a super-2 number, since 2×1326989925² = 3521804522103011250, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1371792 + ... + 1372758.

It is an arithmetic number, because the mean of its divisors is an integer number (27007200).

Almost surely, 2^1326989925 is an apocalyptic number.

1326989925 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1326989925 is a deficient number, since it is larger than the sum of its proper divisors (1265701275).

1326989925 is a wasteful number, since it uses less digits than its factorization.

1326989925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1112 (or 1101 counting only the distinct ones).

The product of its digits is 2099520, while the sum is 54.

The square root of 1326989925 is about 36427.8729134711. The cubic root of 1326989925 is about 1098.8941848547.

The spelling of 1326989925 in words is "one billion, three hundred twenty-six million, nine hundred eighty-nine thousand, nine hundred twenty-five".