3140205 has 8 divisors (see below), whose sum is σ = 5024352. Its totient is φ = 1674768.

The previous prime is 3140183. The next prime is 3140209. The reversal of 3140205 is 5020413.

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

It is not a de Polignac number, because 3140205 - 2¹⁹ = 2615917 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 209347 = 3140205 / (3 + 1 + 4 + 0 + 2 + 0 + 5).

3140205 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3140209) 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, 104659 + ... + 104688.

It is an arithmetic number, because the mean of its divisors is an integer number (628044).

Almost surely, 2^3140205 is an apocalyptic number.

It is an amenable number.

3140205 is a deficient number, since it is larger than the sum of its proper divisors (1884147).

3140205 is a wasteful number, since it uses less digits than its factorization.

3140205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209355.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 3140205 is about 1772.0623578193. The cubic root of 3140205 is about 146.4376217176.

Adding to 3140205 its reverse (5020413), we get a palindrome (8160618).

The spelling of 3140205 in words is "three million, one hundred forty thousand, two hundred five".