1320513245 has 8 divisors (see below), whose sum is σ = 1595251800. Its totient is φ = 1049320000.

The previous prime is 1320513241. The next prime is 1320513263. The reversal of 1320513245 is 5423150231.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 63001 + 1320450244 = 251^2 + 36338^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1320513245 - 2² = 1320513241 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320513241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 885506 + ... + 886995.

It is an arithmetic number, because the mean of its divisors is an integer number (199406475).

Almost surely, 2^1320513245 is an apocalyptic number.

It is an amenable number.

1320513245 is a deficient number, since it is larger than the sum of its proper divisors (274738555).

1320513245 is a wasteful number, since it uses less digits than its factorization.

1320513245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1772655.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 1320513245 is about 36338.8668645570. The cubic root of 1320513245 is about 1097.1034662828.

Adding to 1320513245 its reverse (5423150231), we get a palindrome (6743663476).

The spelling of 1320513245 in words is "one billion, three hundred twenty million, five hundred thirteen thousand, two hundred forty-five".