1325453578 has 16 divisors (see below), whose sum is σ = 1999257480. Its totient is φ = 659045376.

The previous prime is 1325453561. The next prime is 1325453579. The reversal of 1325453578 is 8753545231.

It can be written as a sum of positive squares in 4 ways, for example, as 809573209 + 515880369 = 28453^2 + 22713^2 .

It is not an unprimeable number, because it can be changed into a prime (1325453579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 277918 + ... + 282646.

Almost surely, 2^1325453578 is an apocalyptic number.

1325453578 is a deficient number, since it is larger than the sum of its proper divisors (673803902).

1325453578 is a wasteful number, since it uses less digits than its factorization.

1325453578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5481.

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

The square root of 1325453578 is about 36406.7792862813. The cubic root of 1325453578 is about 1098.4699327639.

The spelling of 1325453578 in words is "one billion, three hundred twenty-five million, four hundred fifty-three thousand, five hundred seventy-eight".