1129337709 has 4 divisors (see below), whose sum is σ = 1505783616. Its totient is φ = 752891804.

The previous prime is 1129337687. The next prime is 1129337711. The reversal of 1129337709 is 9077339211.

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 1129337709 - 2¹⁵ = 1129304941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1129337779) 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, 188222949 + ... + 188222954.

It is an arithmetic number, because the mean of its divisors is an integer number (376445904).

Almost surely, 2^1129337709 is an apocalyptic number.

It is an amenable number.

1129337709 is a deficient number, since it is larger than the sum of its proper divisors (376445907).

1129337709 is an equidigital number, since it uses as much as digits as its factorization.

1129337709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376445906.

The product of its (nonzero) digits is 71442, while the sum is 42.

The square root of 1129337709 is about 33605.6201996035. The cubic root of 1129337709 is about 1041.3769080551.

The spelling of 1129337709 in words is "one billion, one hundred twenty-nine million, three hundred thirty-seven thousand, seven hundred nine".