1137943689 has 4 divisors (see below), whose sum is σ = 1517258256. Its totient is φ = 758629124.

The previous prime is 1137943627. The next prime is 1137943711. The reversal of 1137943689 is 9863497311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1137943689 - 2¹³ = 1137935497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1137943619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189657279 + ... + 189657284.

It is an arithmetic number, because the mean of its divisors is an integer number (379314564).

Almost surely, 2^1137943689 is an apocalyptic number.

It is an amenable number.

1137943689 is a deficient number, since it is larger than the sum of its proper divisors (379314567).

1137943689 is an equidigital number, since it uses as much as digits as its factorization.

1137943689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379314566.

The product of its digits is 979776, while the sum is 51.

The square root of 1137943689 is about 33733.4209501497. The cubic root of 1137943689 is about 1044.0154456325.

The spelling of 1137943689 in words is "one billion, one hundred thirty-seven million, nine hundred forty-three thousand, six hundred eighty-nine".