1573729445 has 16 divisors (see below), whose sum is σ = 1937875968. Its totient is φ = 1226156160.

The previous prime is 1573729403. The next prime is 1573729447. The reversal of 1573729445 is 5449273751.

It is not a de Polignac number, because 1573729445 - 2²⁰ = 1572680869 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 1573729445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1573729447) 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 15 ways as a sum of consecutive naturals, for example, 118112 + ... + 130758.

It is an arithmetic number, because the mean of its divisors is an integer number (121117248).

Almost surely, 2^1573729445 is an apocalyptic number.

It is an amenable number.

1573729445 is a deficient number, since it is larger than the sum of its proper divisors (364146523).

1573729445 is a wasteful number, since it uses less digits than its factorization.

1573729445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13300.

The product of its digits is 1058400, while the sum is 47.

The square root of 1573729445 is about 39670.2589479827. The cubic root of 1573729445 is about 1163.1704402610.

The spelling of 1573729445 in words is "one billion, five hundred seventy-three million, seven hundred twenty-nine thousand, four hundred forty-five".