1313600549 has 4 divisors (see below), whose sum is σ = 1382737440. Its totient is φ = 1244463660.

The previous prime is 1313600527. The next prime is 1313600551. The reversal of 1313600549 is 9450063131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1313600549 - 2²⁰ = 1312551973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313200549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34568417 + ... + 34568454.

It is an arithmetic number, because the mean of its divisors is an integer number (345684360).

Almost surely, 2^1313600549 is an apocalyptic number.

1313600549 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1313600549 is a deficient number, since it is larger than the sum of its proper divisors (69136891).

1313600549 is an equidigital number, since it uses as much as digits as its factorization.

1313600549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69136890.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 1313600549 is about 36243.6277019837. The cubic root of 1313600549 is about 1095.1857233123.

The spelling of 1313600549 in words is "one billion, three hundred thirteen million, six hundred thousand, five hundred forty-nine".