1313440545 has 16 divisors (see below), whose sum is σ = 2102042880. Its totient is φ = 700322304.

The previous prime is 1313440543. The next prime is 1313440559. The reversal of 1313440545 is 5450443131.

It is not a de Polignac number, because 1313440545 - 2¹ = 1313440543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1313440543) 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, 66897 + ... + 84273.

It is an arithmetic number, because the mean of its divisors is an integer number (131377680).

Almost surely, 2^1313440545 is an apocalyptic number.

1313440545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1313440545 is a deficient number, since it is larger than the sum of its proper divisors (788602335).

1313440545 is a wasteful number, since it uses less digits than its factorization.

1313440545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22424.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 1313440545 is about 36241.4202950160. The cubic root of 1313440545 is about 1095.1412548951.

Adding to 1313440545 its reverse (5450443131), we get a palindrome (6763883676).

The spelling of 1313440545 in words is "one billion, three hundred thirteen million, four hundred forty thousand, five hundred forty-five".