1313727247 has 4 divisors (see below), whose sum is σ = 1501402576. Its totient is φ = 1126051920.

The previous prime is 1313727211. The next prime is 1313727253. The reversal of 1313727247 is 7427273131.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1313727247 - 2¹¹ = 1313725199 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 (1313727257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93837654 + ... + 93837667.

It is an arithmetic number, because the mean of its divisors is an integer number (375350644).

Almost surely, 2^1313727247 is an apocalyptic number.

1313727247 is a deficient number, since it is larger than the sum of its proper divisors (187675329).

1313727247 is an equidigital number, since it uses as much as digits as its factorization.

1313727247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187675328.

The product of its digits is 49392, while the sum is 37.

The square root of 1313727247 is about 36245.3755257136. The cubic root of 1313727247 is about 1095.2209327423.

The spelling of 1313727247 in words is "one billion, three hundred thirteen million, seven hundred twenty-seven thousand, two hundred forty-seven".