1371672813 has 16 divisors (see below), whose sum is σ = 2116628480. Its totient is φ = 773890416.

The previous prime is 1371672791. The next prime is 1371672817. The reversal of 1371672813 is 3182761731.

It is not a de Polignac number, because 1371672813 - 2¹³ = 1371664621 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 (1371672817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 411745 + ... + 415062.

It is an arithmetic number, because the mean of its divisors is an integer number (132289280).

Almost surely, 2^1371672813 is an apocalyptic number.

It is an amenable number.

1371672813 is a deficient number, since it is larger than the sum of its proper divisors (744955667).

1371672813 is an equidigital number, since it uses as much as digits as its factorization.

1371672813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 826896.

The product of its digits is 42336, while the sum is 39.

The square root of 1371672813 is about 37036.1014822025. The cubic root of 1371672813 is about 1111.0923999356.

The spelling of 1371672813 in words is "one billion, three hundred seventy-one million, six hundred seventy-two thousand, eight hundred thirteen".