1185370030009 has 27 divisors (see below), whose sum is σ = 1349800666669. Its totient is φ = 1040145333920.

The previous prime is 1185370030007. The next prime is 1185370030021. The reversal of 1185370030009 is 9000300735811.

It is a happy number.

The square root of 1185370030009 is 1088747.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 344715765625 + 840654264384 = 587125^2 + 916872^2 .

It is not a de Polignac number, because 1185370030009 - 2¹ = 1185370030007 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 1185370030009.

It is not an unprimeable number, because it can be changed into a prime (1185370030003) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 347308587 + ... + 347311999.

Almost surely, 2^{1185370030009} is an apocalyptic number.

1185370030009 is the 1088747-th square number.

1185370030009 is the 544374-th centered octagonal number.

It is an amenable number.

1185370030009 is a deficient number, since it is larger than the sum of its proper divisors (164430636660).

1185370030009 is an frugal number, since it uses more digits than its factorization.

1185370030009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6906 (or 3453 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 37.

The spelling of 1185370030009 in words is "one trillion, one hundred eighty-five billion, three hundred seventy million, thirty thousand, nine".