1325035220 has 24 divisors (see below), whose sum is σ = 2794734600. Its totient is φ = 527697792.

The previous prime is 1325035213. The next prime is 1325035247. The reversal of 1325035220 is 225305231.

It can be written as a sum of positive squares in 4 ways, for example, as 205865104 + 1119170116 = 14348^2 + 33454^2 .

It is a congruent number.

It is an unprimeable number.

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, 140075 + ... + 149234.

It is an arithmetic number, because the mean of its divisors is an integer number (116447275).

Almost surely, 2^1325035220 is an apocalyptic number.

1325035220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1325035220 is an abundant number, since it is smaller than the sum of its proper divisors (1469699380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1325035220 is a wasteful number, since it uses less digits than its factorization.

1325035220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289547 (or 289545 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 1325035220 is about 36401.0332270940. The cubic root of 1325035220 is about 1098.3543491754.

The spelling of 1325035220 in words is "one billion, three hundred twenty-five million, thirty-five thousand, two hundred twenty".