1123629 has 16 divisors (see below), whose sum is σ = 1650432. Its totient is φ = 675648.

The previous prime is 1123621. The next prime is 1123631. The reversal of 1123629 is 9263211.

It is not a de Polignac number, because 1123629 - 2³ = 1123621 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1123599 and 1123608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1527 + ... + 2139.

It is an arithmetic number, because the mean of its divisors is an integer number (103152).

2^1123629 is an apocalyptic number.

It is an amenable number.

1123629 is a deficient number, since it is larger than the sum of its proper divisors (526803).

1123629 is a wasteful number, since it uses less digits than its factorization.

1123629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676.

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

The square root of 1123629 is about 1060.0136791570. The cubic root of 1123629 is about 103.9619251649.

It can be divided in two parts, 112 and 3629, that added together give a triangular number (3741 = T₈₆).

The spelling of 1123629 in words is "one million, one hundred twenty-three thousand, six hundred twenty-nine".