1137047509 has 4 divisors (see below), whose sum is σ = 1224512716. Its totient is φ = 1049582304.

The previous prime is 1137047507. The next prime is 1137047521. The reversal of 1137047509 is 9057407311.

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 755040484 + 382007025 = 27478^2 + 19545^2 .

It is a cyclic number.

It is not a de Polignac number, because 1137047509 - 2¹ = 1137047507 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1137047507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43732584 + ... + 43732609.

It is an arithmetic number, because the mean of its divisors is an integer number (306128179).

Almost surely, 2^1137047509 is an apocalyptic number.

It is an amenable number.

1137047509 is a deficient number, since it is larger than the sum of its proper divisors (87465207).

1137047509 is an equidigital number, since it uses as much as digits as its factorization.

1137047509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87465206.

The product of its (nonzero) digits is 26460, while the sum is 37.

The square root of 1137047509 is about 33720.1350679383. The cubic root of 1137047509 is about 1043.7413045088.

The spelling of 1137047509 in words is "one billion, one hundred thirty-seven million, forty-seven thousand, five hundred nine".