1190274454009 has 3 divisors (see below), whose sum is σ = 1190275545007. Its totient is φ = 1190273363012.

The previous prime is 1190274453983. The next prime is 1190274454021. The reversal of 1190274454009 is 9004544720911.

The square root of 1190274454009 is 1090997.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 870628955625 + 319645498384 = 933075^2 + 565372^2 .

It is not a de Polignac number, because 1190274454009 - 2⁹ = 1190274453497 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 1190274454009.

It is not an unprimeable number, because it can be changed into a prime (1190274454099) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 545499 + ... + 1636495.

Almost surely, 2^{1190274454009} is an apocalyptic number.

1190274454009 is the 1090997-th square number.

1190274454009 is the 545499-th centered octagonal number.

It is an amenable number.

1190274454009 is a deficient number, since it is larger than the sum of its proper divisors (1090998).

1190274454009 is an frugal number, since it uses more digits than its factorization.

1190274454009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2181994 (or 1090997 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 46.

The spelling of 1190274454009 in words is "one trillion, one hundred ninety billion, two hundred seventy-four million, four hundred fifty-four thousand, nine".