1320240525 has 12 divisors (see below), whose sum is σ = 2182797792. Its totient is φ = 704128240.

The previous prime is 1320240499. The next prime is 1320240529. The reversal of 1320240525 is 5250420231.

It is not a de Polignac number, because 1320240525 - 2⁶ = 1320240461 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1320240495 and 1320240504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320240529) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8801529 + ... + 8801678.

It is an arithmetic number, because the mean of its divisors is an integer number (181899816).

Almost surely, 2^1320240525 is an apocalyptic number.

1320240525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1320240525 is a deficient number, since it is larger than the sum of its proper divisors (862557267).

1320240525 is a wasteful number, since it uses less digits than its factorization.

1320240525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17603220 (or 17603215 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 1320240525 is about 36335.1142147648. The cubic root of 1320240525 is about 1097.0279343742.

Adding to 1320240525 its reverse (5250420231), we get a palindrome (6570660756).

The spelling of 1320240525 in words is "one billion, three hundred twenty million, two hundred forty thousand, five hundred twenty-five".