1138629 has 8 divisors (see below), whose sum is σ = 1523232. Its totient is φ = 756560.

The previous prime is 1138591. The next prime is 1138637. The reversal of 1138629 is 9268311.

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

It is a cyclic number.

It is not a de Polignac number, because 1138629 - 2⁹ = 1138117 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1138596 and 1138605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1138639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1087 + ... + 1859.

It is an arithmetic number, because the mean of its divisors is an integer number (190404).

2^1138629 is an apocalyptic number.

It is an amenable number.

1138629 is a deficient number, since it is larger than the sum of its proper divisors (384603).

1138629 is an equidigital number, since it uses as much as digits as its factorization.

1138629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1267.

The product of its digits is 2592, while the sum is 30.

The square root of 1138629 is about 1067.0656024819. The cubic root of 1138629 is about 104.4224984908.

The spelling of 1138629 in words is "one million, one hundred thirty-eight thousand, six hundred twenty-nine".