1325152240 has 40 divisors (see below), whose sum is σ = 3109265280. Its totient is φ = 525194496.

The previous prime is 1325152183. The next prime is 1325152259. The reversal of 1325152240 is 422515231.

It is a tau number, because it is divible by the number of its divisors (40).

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, 67264 + ... + 84703.

It is an arithmetic number, because the mean of its divisors is an integer number (77731632).

Almost surely, 2^1325152240 is an apocalyptic number.

1325152240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1325152240 is an abundant number, since it is smaller than the sum of its proper divisors (1784113040).

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

1325152240 is a wasteful number, since it uses less digits than its factorization.

1325152240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152089 (or 152083 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 1325152240 is about 36402.6405635635. The cubic root of 1325152240 is about 1098.3866818109.

Adding to 1325152240 its reverse (422515231), we get a palindrome (1747667471).

The spelling of 1325152240 in words is "one billion, three hundred twenty-five million, one hundred fifty-two thousand, two hundred forty".