1374871543 has 2 divisors, whose sum is σ = 1374871544. Its totient is φ = 1374871542.

The previous prime is 1374871541. The next prime is 1374871649. The reversal of 1374871543 is 3451784731.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1374871543 - 2¹ = 1374871541 is a prime.

Together with 1374871541, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1374871543.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1374871541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 687435771 + 687435772.

It is an arithmetic number, because the mean of its divisors is an integer number (687435772).

Almost surely, 2^1374871543 is an apocalyptic number.

1374871543 is a deficient number, since it is larger than the sum of its proper divisors (1).

1374871543 is an equidigital number, since it uses as much as digits as its factorization.

1374871543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 282240, while the sum is 43.

The square root of 1374871543 is about 37079.2602811868. The cubic root of 1374871543 is about 1111.9554156231.

The spelling of 1374871543 in words is "one billion, three hundred seventy-four million, eight hundred seventy-one thousand, five hundred forty-three".