1320515245 has 16 divisors (see below), whose sum is σ = 1820102400. Its totient is φ = 900941184.

The previous prime is 1320515227. The next prime is 1320515279. The reversal of 1320515245 is 5425150231.

It is a cyclic number.

It is not a de Polignac number, because 1320515245 - 2⁵ = 1320515213 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 87832 + ... + 101761.

It is an arithmetic number, because the mean of its divisors is an integer number (113756400).

Almost surely, 2^1320515245 is an apocalyptic number.

It is an amenable number.

1320515245 is a deficient number, since it is larger than the sum of its proper divisors (499587155).

1320515245 is a wasteful number, since it uses less digits than its factorization.

1320515245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189804.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 1320515245 is about 36338.8943832913. The cubic root of 1320515245 is about 1097.1040201598.

Adding to 1320515245 its reverse (5425150231), we get a palindrome (6745665476).

The spelling of 1320515245 in words is "one billion, three hundred twenty million, five hundred fifteen thousand, two hundred forty-five".