1325538745 has 16 divisors (see below), whose sum is σ = 1642883472. Its totient is φ = 1026155520.

The previous prime is 1325538701. The next prime is 1325538811. The reversal of 1325538745 is 5478355231.

It can be written as a sum of positive squares in 8 ways, for example, as 194965369 + 1130573376 = 13963^2 + 33624^2 .

It is not a de Polignac number, because 1325538745 - 2⁹ = 1325538233 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14916 + ... + 53605.

It is an arithmetic number, because the mean of its divisors is an integer number (102680217).

Almost surely, 2^1325538745 is an apocalyptic number.

It is an amenable number.

1325538745 is a deficient number, since it is larger than the sum of its proper divisors (317344727).

1325538745 is an equidigital number, since it uses as much as digits as its factorization.

1325538745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68652.

The product of its digits is 504000, while the sum is 43.

The square root of 1325538745 is about 36407.9489260244. The cubic root of 1325538745 is about 1098.4934596498.

The spelling of 1325538745 in words is "one billion, three hundred twenty-five million, five hundred thirty-eight thousand, seven hundred forty-five".