1373864543 has 8 divisors (see below), whose sum is σ = 1435235328. Its totient is φ = 1312630264.

The previous prime is 1373864533. The next prime is 1373864549. The reversal of 1373864543 is 3454683731.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1373864543 - 2⁸ = 1373864287 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1373864494 and 1373864503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1373864549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13271 + ... + 54072.

It is an arithmetic number, because the mean of its divisors is an integer number (179404416).

Almost surely, 2^1373864543 is an apocalyptic number.

1373864543 is a deficient number, since it is larger than the sum of its proper divisors (61370785).

1373864543 is an equidigital number, since it uses as much as digits as its factorization.

1373864543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68253.

The product of its digits is 725760, while the sum is 44.

The square root of 1373864543 is about 37065.6787743055. The cubic root of 1373864543 is about 1111.6838720504.

The spelling of 1373864543 in words is "one billion, three hundred seventy-three million, eight hundred sixty-four thousand, five hundred forty-three".