1313522545 has 16 divisors (see below), whose sum is σ = 1629089280. Its totient is φ = 1015660800.

The previous prime is 1313522543. The next prime is 1313522557. The reversal of 1313522545 is 5452253131.

It is not a de Polignac number, because 1313522545 - 2¹ = 1313522543 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (1313522543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131746 + ... + 141364.

It is an arithmetic number, because the mean of its divisors is an integer number (101818080).

Almost surely, 2^1313522545 is an apocalyptic number.

It is an amenable number.

1313522545 is a deficient number, since it is larger than the sum of its proper divisors (315566735).

1313522545 is an equidigital number, since it uses as much as digits as its factorization.

1313522545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10536.

The product of its digits is 18000, while the sum is 31.

The square root of 1313522545 is about 36242.5515796005. The cubic root of 1313522545 is about 1095.1640448403.

Adding to 1313522545 its reverse (5452253131), we get a palindrome (6765775676).

The spelling of 1313522545 in words is "one billion, three hundred thirteen million, five hundred twenty-two thousand, five hundred forty-five".