1129623 has 8 divisors (see below), whose sum is σ = 1643136. Its totient is φ = 684600.

The previous prime is 1129619. The next prime is 1129643. The reversal of 1129623 is 3269211.

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

It is not a de Polignac number, because 1129623 - 2² = 1129619 is a prime.

1129623 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1129593 and 1129602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1129603) 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, 17083 + ... + 17148.

It is an arithmetic number, because the mean of its divisors is an integer number (205392).

2^1129623 is an apocalyptic number.

1129623 is a deficient number, since it is larger than the sum of its proper divisors (513513).

1129623 is a wasteful number, since it uses less digits than its factorization.

1129623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34245.

The product of its digits is 648, while the sum is 24.

The square root of 1129623 is about 1062.8372405971. The cubic root of 1129623 is about 104.1464590846.

The spelling of 1129623 in words is "one million, one hundred twenty-nine thousand, six hundred twenty-three".