3660139 has 16 divisors (see below), whose sum is σ = 4386816. Its totient is φ = 2988000.

The previous prime is 3660131. The next prime is 3660187. The reversal of 3660139 is 9310663.

It is a cyclic number.

It is not a de Polignac number, because 3660139 - 2³ = 3660131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3660131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21834 + ... + 22000.

It is an arithmetic number, because the mean of its divisors is an integer number (274176).

Almost surely, 2^3660139 is an apocalyptic number.

3660139 is a deficient number, since it is larger than the sum of its proper divisors (726677).

3660139 is a wasteful number, since it uses less digits than its factorization.

3660139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306.

The product of its (nonzero) digits is 2916, while the sum is 28.

The square root of 3660139 is about 1913.1489748579. The cubic root of 3660139 is about 154.1106053122.

The spelling of 3660139 in words is "three million, six hundred sixty thousand, one hundred thirty-nine".