1316724949 has 4 divisors (see below), whose sum is σ = 1322188780. Its totient is φ = 1311261120.

The previous prime is 1316724923. The next prime is 1316724967. The reversal of 1316724949 is 9494276131.

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

It can be written as a sum of positive squares in 2 ways, for example, as 875094724 + 441630225 = 29582^2 + 21015^2 .

It is a cyclic number.

It is not a de Polignac number, because 1316724949 - 2⁵ = 1316724917 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1316724899 and 1316724908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1316724989) 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, 2731554 + ... + 2732035.

It is an arithmetic number, because the mean of its divisors is an integer number (330547195).

Almost surely, 2^1316724949 is an apocalyptic number.

It is an amenable number.

1316724949 is a deficient number, since it is larger than the sum of its proper divisors (5463831).

1316724949 is an equidigital number, since it uses as much as digits as its factorization.

1316724949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5463830.

The product of its digits is 326592, while the sum is 46.

The square root of 1316724949 is about 36286.7048517773. The cubic root of 1316724949 is about 1096.0533358548.

The spelling of 1316724949 in words is "one billion, three hundred sixteen million, seven hundred twenty-four thousand, nine hundred forty-nine".