1351643201573 has 4 divisors (see below), whose sum is σ = 1544735087520. Its totient is φ = 1158551315628.

The previous prime is 1351643201563. The next prime is 1351643201581. The reversal of 1351643201573 is 3751023461531.

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.

It is not a de Polignac number, because 1351643201573 - 2²⁶ = 1351576092709 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 1351643201573.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1351643201533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96545942963 + ... + 96545942976.

It is an arithmetic number, because the mean of its divisors is an integer number (386183771880).

Almost surely, 2^{1351643201573} is an apocalyptic number.

It is an amenable number.

1351643201573 is a deficient number, since it is larger than the sum of its proper divisors (193091885947).

1351643201573 is an equidigital number, since it uses as much as digits as its factorization.

1351643201573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193091885946.

The product of its (nonzero) digits is 226800, while the sum is 41.

The spelling of 1351643201573 in words is "one trillion, three hundred fifty-one billion, six hundred forty-three million, two hundred one thousand, five hundred seventy-three".