1138669 has 8 divisors (see below), whose sum is σ = 1329408. Its totient is φ = 954960.

The previous prime is 1138667. The next prime is 1138673. The reversal of 1138669 is 9668311.

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 1138669 - 2¹ = 1138667 is a prime.

It is a super-2 number, since 2×1138669² = 2593134183122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1138667) 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, 1402 + ... + 2059.

It is an arithmetic number, because the mean of its divisors is an integer number (166176).

2^1138669 is an apocalyptic number.

It is an amenable number.

1138669 is a deficient number, since it is larger than the sum of its proper divisors (190739).

1138669 is an equidigital number, since it uses as much as digits as its factorization.

1138669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3515.

The product of its digits is 7776, while the sum is 34.

The square root of 1138669 is about 1067.0843453073. The cubic root of 1138669 is about 104.4237212628.

The spelling of 1138669 in words is "one million, one hundred thirty-eight thousand, six hundred sixty-nine".