1139505 has 8 divisors (see below), whose sum is σ = 1823232. Its totient is φ = 607728.

The previous prime is 1139503. The next prime is 1139519. The reversal of 1139505 is 5059311.

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

It is not a de Polignac number, because 1139505 - 2¹ = 1139503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1139503) 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, 37969 + ... + 37998.

It is an arithmetic number, because the mean of its divisors is an integer number (227904).

2^1139505 is an apocalyptic number.

1139505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1139505 is a deficient number, since it is larger than the sum of its proper divisors (683727).

1139505 is an equidigital number, since it uses as much as digits as its factorization.

1139505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75975.

The product of its (nonzero) digits is 675, while the sum is 24.

The square root of 1139505 is about 1067.4759950463. The cubic root of 1139505 is about 104.4492706470.

The spelling of 1139505 in words is "one million, one hundred thirty-nine thousand, five hundred five".