1313340555 has 16 divisors (see below), whose sum is σ = 2105568000. Its totient is φ = 699040608.

The previous prime is 1313340551. The next prime is 1313340557. The reversal of 1313340555 is 5550433131.

It is not a de Polignac number, because 1313340555 - 2² = 1313340551 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1313340551) 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, 80247 + ... + 95216.

It is an arithmetic number, because the mean of its divisors is an integer number (131598000).

Almost surely, 2^1313340555 is an apocalyptic number.

1313340555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1313340555 is a deficient number, since it is larger than the sum of its proper divisors (792227445).

1313340555 is a wasteful number, since it uses less digits than its factorization.

1313340555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175970.

The product of its (nonzero) digits is 13500, while the sum is 30.

The square root of 1313340555 is about 36240.0407698446. The cubic root of 1313340555 is about 1095.1134637747.

Adding to 1313340555 its reverse (5550433131), we get a palindrome (6863773686).

The spelling of 1313340555 in words is "one billion, three hundred thirteen million, three hundred forty thousand, five hundred fifty-five".