1375056673 has 2 divisors, whose sum is σ = 1375056674. Its totient is φ = 1375056672.

The previous prime is 1375056653. The next prime is 1375056703. The reversal of 1375056673 is 3766505731.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 763582689 + 611473984 = 27633^2 + 24728^2 .

It is an emirp because it is prime and its reverse (3766505731) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1375056673 - 2²¹ = 1372959521 is a prime.

It is not a weakly prime, because it can be changed into another prime (1375056643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 687528336 + 687528337.

It is an arithmetic number, because the mean of its divisors is an integer number (687528337).

Almost surely, 2^1375056673 is an apocalyptic number.

It is an amenable number.

1375056673 is a deficient number, since it is larger than the sum of its proper divisors (1).

1375056673 is an equidigital number, since it uses as much as digits as its factorization.

1375056673 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 396900, while the sum is 43.

The square root of 1375056673 is about 37081.7566061803. The cubic root of 1375056673 is about 1112.0053226049.

The spelling of 1375056673 in words is "one billion, three hundred seventy-five million, fifty-six thousand, six hundred seventy-three".