1139506 has 16 divisors (see below), whose sum is σ = 1820160. Its totient is φ = 533520.

The previous prime is 1139503. The next prime is 1139519. The reversal of 1139506 is 6059311.

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, 5871 + ... + 6061.

It is an arithmetic number, because the mean of its divisors is an integer number (113760).

2^1139506 is an apocalyptic number.

1139506 is a deficient number, since it is larger than the sum of its proper divisors (680654).

1139506 is a wasteful number, since it uses less digits than its factorization.

1139506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369.

The product of its (nonzero) digits is 810, while the sum is 25.

The square root of 1139506 is about 1067.4764634408. The cubic root of 1139506 is about 104.4493012010.

The spelling of 1139506 in words is "one million, one hundred thirty-nine thousand, five hundred six".