1139601 has 8 divisors (see below), whose sum is σ = 1599520. Its totient is φ = 719712.

The previous prime is 1139587. The next prime is 1139623. The reversal of 1139601 is 1069311.

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 1139601 - 2⁷ = 1139473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1139681) 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, 9940 + ... + 10053.

It is an arithmetic number, because the mean of its divisors is an integer number (199940).

2^1139601 is an apocalyptic number.

It is an amenable number.

1139601 is a deficient number, since it is larger than the sum of its proper divisors (459919).

1139601 is a wasteful number, since it uses less digits than its factorization.

1139601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20015.

The product of its (nonzero) digits is 162, while the sum is 21.

The square root of 1139601 is about 1067.5209599816. The cubic root of 1139601 is about 104.4522037476.

The spelling of 1139601 in words is "one million, one hundred thirty-nine thousand, six hundred one".