1129629 has 8 divisors (see below), whose sum is σ = 1514752. Its totient is φ = 748800.

The previous prime is 1129619. The next prime is 1129643. The reversal of 1129629 is 9269211.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1129629 - 2⁷ = 1129501 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1129596 and 1129605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1129619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 397 + ... + 1554.

It is an arithmetic number, because the mean of its divisors is an integer number (189344).

2^1129629 is an apocalyptic number.

It is an amenable number.

1129629 is a deficient number, since it is larger than the sum of its proper divisors (385123).

1129629 is a wasteful number, since it uses less digits than its factorization.

1129629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2147.

The product of its digits is 1944, while the sum is 30.

The square root of 1129629 is about 1062.8400632268. The cubic root of 1129629 is about 104.1466434758.

It can be divided in two parts, 11296 and 29, that added together give a triangular number (11325 = T₁₅₀).

The spelling of 1129629 in words is "one million, one hundred twenty-nine thousand, six hundred twenty-nine".