1316378541 has 4 divisors (see below), whose sum is σ = 1755171392. Its totient is φ = 877585692.

The previous prime is 1316378519. The next prime is 1316378579. The reversal of 1316378541 is 1458736131.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1458736131 = 3 ⋅486245377.

It is not a de Polignac number, because 1316378541 - 2⁹ = 1316378029 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1316378541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1316398541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 219396421 + ... + 219396426.

It is an arithmetic number, because the mean of its divisors is an integer number (438792848).

Almost surely, 2^1316378541 is an apocalyptic number.

It is an amenable number.

1316378541 is a deficient number, since it is larger than the sum of its proper divisors (438792851).

1316378541 is an equidigital number, since it uses as much as digits as its factorization.

1316378541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438792850.

The product of its digits is 60480, while the sum is 39.

The square root of 1316378541 is about 36281.9313295199. The cubic root of 1316378541 is about 1095.9572097441.

The spelling of 1316378541 in words is "one billion, three hundred sixteen million, three hundred seventy-eight thousand, five hundred forty-one".