1372738573 has 4 divisors (see below), whose sum is σ = 1373890428. Its totient is φ = 1371586720.

The previous prime is 1372738529. The next prime is 1372738643. The reversal of 1372738573 is 3758372731.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 975812644 + 396925929 = 31238^2 + 19923^2 .

It is a cyclic number.

It is not a de Polignac number, because 1372738573 - 2²⁹ = 835867661 is a prime.

It is a super-2 number, since 2×1372738573² = 3768822379604152658, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1372738973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 574138 + ... + 576523.

It is an arithmetic number, because the mean of its divisors is an integer number (343472607).

Almost surely, 2^1372738573 is an apocalyptic number.

It is an amenable number.

1372738573 is a deficient number, since it is larger than the sum of its proper divisors (1151855).

1372738573 is a wasteful number, since it uses less digits than its factorization.

1372738573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1151854.

The product of its digits is 740880, while the sum is 46.

The square root of 1372738573 is about 37050.4868119165. The cubic root of 1372738573 is about 1111.3800903306.

The spelling of 1372738573 in words is "one billion, three hundred seventy-two million, seven hundred thirty-eight thousand, five hundred seventy-three".