1129957629 has 4 divisors (see below), whose sum is σ = 1506610176. Its totient is φ = 753305084.

The previous prime is 1129957579. The next prime is 1129957637. The reversal of 1129957629 is 9267599211.

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 1129957629 - 2⁸ = 1129957373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1129957669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188326269 + ... + 188326274.

It is an arithmetic number, because the mean of its divisors is an integer number (376652544).

Almost surely, 2^1129957629 is an apocalyptic number.

It is an amenable number.

1129957629 is a deficient number, since it is larger than the sum of its proper divisors (376652547).

1129957629 is an equidigital number, since it uses as much as digits as its factorization.

1129957629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376652546.

The product of its digits is 612360, while the sum is 51.

The square root of 1129957629 is about 33614.8423914199. The cubic root of 1129957629 is about 1041.5674186174.

The spelling of 1129957629 in words is "one billion, one hundred twenty-nine million, nine hundred fifty-seven thousand, six hundred twenty-nine".