1140205 has 8 divisors (see below), whose sum is σ = 1492704. Its totient is φ = 829200.

The previous prime is 1140203. The next prime is 1140233. The reversal of 1140205 is 5020411.

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

It is not a de Polignac number, because 1140205 - 2¹ = 1140203 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140203) 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, 10311 + ... + 10420.

It is an arithmetic number, because the mean of its divisors is an integer number (186588).

2^1140205 is an apocalyptic number.

It is an amenable number.

1140205 is a deficient number, since it is larger than the sum of its proper divisors (352499).

1140205 is a wasteful number, since it uses less digits than its factorization.

1140205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20747.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 1140205 is about 1067.8038209334. The cubic root of 1140205 is about 104.4706540615.

Adding to 1140205 its reverse (5020411), we get a palindrome (6160616).

The spelling of 1140205 in words is "one million, one hundred forty thousand, two hundred five".